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31057568204 = 22134313889789
BaseRepresentation
bin11100111011001011…
…001110000111001100
32222011110021221012212
4130323023032013030
51002101214140304
622133451245552
72146430655035
oct347313160714
988143257185
1031057568204
1112198207743
1260291498b8
132c0c50a3c0
141708a9da8c
15c1b8cc66e
hex73b2ce1cc

31057568204 has 24 divisors (see below), whose sum is σ = 59892774480. Its totient is φ = 14000906304.

The previous prime is 31057568197. The next prime is 31057568237. The reversal of 31057568204 is 40286575013.

It is a super-2 number, since 2×310575682042 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6942659 + ... + 6947130.

It is an arithmetic number, because the mean of its divisors is an integer number (2495532270).

Almost surely, 231057568204 is an apocalyptic number.

It is an amenable number.

31057568204 is a deficient number, since it is larger than the sum of its proper divisors (28835206276).

31057568204 is a wasteful number, since it uses less digits than its factorization.

31057568204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13889849 (or 13889847 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 31057568204 in words is "thirty-one billion, fifty-seven million, five hundred sixty-eight thousand, two hundred four".

Divisors: 1 2 4 13 26 43 52 86 172 559 1118 2236 13889789 27779578 55559156 180567257 361134514 597260927 722269028 1194521854 2389043708 7764392051 15528784102 31057568204