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30,000 (thirty thousand) is the natural number that comes after 29,999 and before 30,001. ==Selected numbers== * 30000 – round number * 30029 – primorial prime * 30030 – primorial * 30240 – harmonic divisor number * 30420 – pentagonal pyramidal number * 30694 – open meandric number * 30941 – first base 13 repunit prime * 31116 – octahedral number * 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 * 31721 – start of a prime quadruplet * 31929 – Zeisel number * 32043 – smallest number whose square is pandigital. * 32045 – can be expressed as a sum of two squares in more ways than any smaller number * 32760 – harmonic divisor number * 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 * 32993 – Leyland number * 33461 – Pell number, Markov number * 33511 – square pyramidal number * 33781 – octahedral number * 34560 – 5 superfactorial * 34841 – start of a prime quadruplet〔 * 34969 – favorite number of the Muppet character Count von Count * 35720 – square pyramidal number * 35840 – number of ounces in a long ton (2,240 pounds) * 35890 – tribonacci number * 35899 – alternating factorial * 35937 – 333, chiliagonal number * 35964 – digit-reassembly number * 36100 – sum of the cubes of the first 19 positive integers * 36594 – octahedral number * 37378 – semi-meandric number * 37666 – Markov number * 37926 – pentagonal pyramidal number * 38024 – square pyramidal number * 38416 – 144 * 38962 – Kaprekar number * 39304 – 343 * 39559 – octahedral number * 39648 – tetranacci number 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「30000 (number)」の詳細全文を読む スポンサード リンク
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