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30388856976 = 24327321992
BaseRepresentation
bin11100010011010100…
…010010100010010000
32220102211222212212100
4130103110102202100
5444214021410401
621543242400400
72124031010442
oct342324224220
986384885770
1030388856976
1111984799035
125a81200100
132b33b0479a
141683d4c492
15bccd3ab86
hex713512890

30388856976 has 135 divisors (see below), whose sum is σ = 86663055609. Its totient is φ = 9940651776.

The previous prime is 30388856969. The next prime is 30388856989. The reversal of 30388856976 is 67965888303.

The square root of 30388856976 is 174324.

It is a perfect power (a square), and thus also a powerful number.

30388856976 is a `hidden beast` number, since 30 + 38 + 8 + 8 + 569 + 7 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17250195600 + 13138661376 = 131340^2 + 114624^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 152707725 + ... + 152707923.

Almost surely, 230388856976 is an apocalyptic number.

30388856976 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

30388856976 is the 174324-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30388856976

30388856976 is an abundant number, since it is smaller than the sum of its proper divisors (56274198633).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30388856976 is an equidigital number, since it uses as much as digits as its factorization.

30388856976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

It can be divided in two parts, 30388 and 856976, that added together give a square (887364 = 9422).

The spelling of 30388856976 in words is "thirty billion, three hundred eighty-eight million, eight hundred fifty-six thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 73 144 146 199 219 292 398 438 584 597 657 796 876 1168 1194 1314 1592 1752 1791 2388 2628 3184 3504 3582 4776 5256 5329 7164 9552 10512 10658 14328 14527 15987 21316 28656 29054 31974 39601 42632 43581 47961 58108 63948 79202 85264 87162 95922 116216 118803 127896 130743 158404 174324 191844 232432 237606 255792 261486 316808 348648 356409 383688 475212 522972 633616 697296 712818 767376 950424 1045944 1060471 1425636 1900848 2091888 2120942 2851272 2890873 3181413 4241884 5702544 5781746 6362826 8483768 8672619 9544239 11563492 12725652 16967536 17345238 19088478 23126984 25451304 26017857 34690476 38176956 46253968 50902608 52035714 69380952 76353912 104071428 138761904 152707824 208142856 211033729 416285712 422067458 633101187 844134916 1266202374 1688269832 1899303561 2532404748 3376539664 3798607122 5064809496 7597214244 10129618992 15194428488 30388856976