30,000

← 29999 30000 30001 →
List of numbers — Integers ← 0 10k 20k 30k 40k 50k 60k 70k 80k 90k →
Cardinal	thirty thousand
Ordinal	30000th (thirty thousandth)
Factorization	24 × 3 × 54
Greek numeral
Roman numeral	XXX
Binary	1110101001100002
Ternary	11120110103
Octal	724608
Duodecimal	1544012
Hexadecimal	753016

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

Selected numbers in the range 30001–39999

30001 to 30999

• 30029 – primorial prime
• 30030 – primorial^[1]
• 30203 – safe prime
• 30240 – harmonic divisor number^[2]
• 30323 – Sophie Germain prime and safe prime
• 30420 – pentagonal pyramidal number^[3]
• 30694 – open meandric number
• 30941 – first base 13 repunit prime

31000 to 31999

• 31116 – octahedral number^[4]
• 31337 – cousin prime, pronounced elite, an alternate way to spell 1337, an obfuscated alphabet made with numbers and punctuation, known and used in the gamer, hacker and BBS cultures.
• 31395 – square pyramidal number
• 31397 – prime number followed by a record prime gap of 72, the first above 52^[5]
• 31721 – start of a prime quadruplet^[6]
• 31929 – Zeisel number^[7]

32000 to 32999

• 32043 – smallest number whose square is pandigital.
• 32045 – can be expressed as a sum of two squares in more ways than any smaller number^[8]
• 32760 – harmonic divisor number^[2]
• 32761 – 181², centered hexagonal number
• 32767 – 2¹⁵ − 1, largest positive value for a signed (two's complement) 16-bit integer on a computer.
• 32768 – 2¹⁵, maximum absolute value of a negative value for a signed (two's complement) 16-bit integer on a computer.
• 32800 – pentagonal pyramidal number^[3]
• 32993 – Leyland number^[9]

33000 to 33999

• 33333 – repdigit
• 33461 – Pell number,^[10] Markov number^[11]
• 33511 – square pyramidal number
• 33781 – octahedral number^[4]

34000 to 34999

• 34560 – 5 superfactorial^[12]
• 34841 – start of a prime quadruplet^[6]
• 34969 – favorite number of the Muppet character Count von Count ^[13]

35000 to 35999

• 35720 – square pyramidal number
• 35840 – number of ounces in a long ton (2,240 pounds)
• 35890 – tribonacci number^[14]
• 35899 – alternating factorial^[15]
• 35937 – 33³, chiliagonal number^[16]
• 35964 – digit-reassembly number

36000 to 36999

• 36100 – sum of the cubes of the first 19 positive integers
• 36594 – octahedral number^[4]

37000 to 37999

• 37378 – semi-meandric number^[17]
• 37634 – third term of the Lucas–Lehmer sequence
• 37666 – Markov number^[11]
• 37926 – pentagonal pyramidal number^[3]

38000 to 38999

• 38024 – square pyramidal number
• 38416 – 14⁴
• 38962 – Kaprekar number^[18]

39000 to 39999

• 39304 – 34³
• 39559 – octahedral number^[4]
• 39648 – tetranacci n^[19]

References