← 29999 30000 30001 →
List of numbers Integers ←010k20k30k40k50k60k70k80k90k→
Cardinal	thirty thousand
Ordinal	30000th (thirty thousandth)
Factorization	24 × 3 × 54
Greek numeral	${\displaystyle \stackrel{\gamma }{\mathrm{M}}}$
Roman numeral	XXX,xxx
Binary	1110101001100002
Ternary	11120110103
Senary	3505206
Octal	724608
Duodecimal	1544012
Hexadecimal	753016

30,000 (thirty thousand) is thenatural number that comes after 29,999 and before 30,001.

• 30029 =primorial prime
• 30030 =primorial^[1]
• 30031 = smallestcomposite number which is one more than a primorial
• 30203 =safe prime
• 30240 =harmonic divisor number,^[2] smallest4-perfect number^[3]
• 30323 =Sophie Germain prime and safe prime
• 30420 = pentagonal pyramidal number^[4]
• 30537 =Riordan number
• 30694 =open meandric number
• 30941 = first base 13 repunit prime

• 31116 =octahedral number^[5]
• 31185 = number of partitions of 39^[6]
• 31337 =cousin prime, pronouncedelite, an alternate way to spell1337, an obfuscated alphabet made with numbers and punctuation, known and used in thegamer,hacker, andBBS cultures.
• 31395 =square pyramidal number
• 31397 = prime number followed by a recordprime gap of 72, the first greater than 52^[7]
• 31688 = the number of years approximately equal to 1 trillion seconds
• 31721 = start of aprime quadruplet^[8]
• 31929 = Zeisel number^[9]

• 32043 = smallest number whosesquare ispandigital.
• 32045 = can be expressed as a sum of two squares in more ways than any smaller number.^[10]
• 32760 = harmonic divisor number^[2]
• 32761 = 181²,centered hexagonal number
• 32767 = 2¹⁵ − 1, largest positive value for a signed (two's complement) 16-bitinteger on a computer.
• 32768 = 2¹⁵ = 8⁵ = 32³, maximumabsolute value of a negative value for a signed (two's complement) 16-bitinteger on a computer.
• 32800 = pentagonal pyramidal number^[4]
• 32993 =Leyland prime^[11] using 2 & 15 (2¹⁵ + 15²)

• 33333 =repdigit
• 33461 = Pell number,^[12] Markov number^[13]
• 33511 = square pyramidal number
• 33781 = octahedral number^[5]

• 34560 = 5superfactorial^[14]
• 34790 =number of non-isomorphic set-systems of weight 13.
• 34841 = start of a prime quadruplet^[8]
• 34969 = favorite number of the Muppet characterCount von Count^[15]

• 35720 = square pyramidal number
• 35840 = number ofounces in along ton (2,240pounds)
• 35890 =tribonacci number^[16]
• 35899 =alternating factorial^[17]
• 35937 = 33³, chiliagonal number^[18]
• 35964 =digit-reassembly number

• 36100 = sum of the cubes of the first 19 positive integers
• 36463 – number of parallelogram polyominoes with 14 cells^[19]
• 36594 = octahedral number^[5]

• 37338 = number of partitions of 40^[6]
• 37378 =semi-meandric number^[20]
• 37634 = third term of theLucas–Lehmer sequence
• 37666 =Markov number^[13]
• 37926 = pentagonal pyramidal number^[4]

• 38024 = square pyramidal number
• 38209 = n such that n | (3ⁿ + 5)^[21]
• 38305 = the largest Forges-compatible number (for index 32) to the field${\displaystyle \mathbb{Q}(\sqrt{6},\sqrt{14})}$. But a conjecture ofViggo Brun predicts that there are infinitely many such numbers for any Galois field${\displaystyle F}$ unless${\displaystyle F}$ is bad.
• 38416 = 14⁴
• 38501 = 7⁴ + 190²: Friedlander-Iwaniec prime.^[22] Smallest prime separated by at least 40 from the nearest primes (38461 and 38543). It is thus anisolated prime.^[23]Chen prime.^[24]
• 38807 = number of non-equivalent ways of expressing 10,000,000 as the sum of two prime numbers^[25]
• 38962 =Kaprekar number^[26]

• 39299 = Integer connected with coefficients in expansion of Weierstrass P-function^[27]
• 39304 = 34³
• 39559 = octahedral number^[5]
• 39648 = tetranacci number^[28]

There are 958 prime numbers between 30,000 and 40,000.

• Integers

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