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31002645412 = 22199233167159
BaseRepresentation
bin11100110111111001…
…101101001110100100
32222000121221120022101
4130313321231032210
51001443134123122
622124210141444
72145163065214
oct346771551644
988017846271
1031002645412
111216a204402
126012881884
132c0101a3cb
141701684244
15c16b7e027
hex737e6d3a4

31002645412 has 24 divisors (see below), whose sum is σ = 54761616000. Its totient is φ = 15357139776.

The previous prime is 31002645383. The next prime is 31002645437. The reversal of 31002645412 is 21454620013.

It is a super-2 number, since 2×310026454122 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101889 + ... + 269047.

It is an arithmetic number, because the mean of its divisors is an integer number (2281734000).

Almost surely, 231002645412 is an apocalyptic number.

It is an amenable number.

31002645412 is a deficient number, since it is larger than the sum of its proper divisors (23758970588).

31002645412 is a wasteful number, since it uses less digits than its factorization.

31002645412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167595 (or 167593 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 31002645412 in words is "thirty-one billion, two million, six hundred forty-five thousand, four hundred twelve".

Divisors: 1 2 4 199 233 398 466 796 932 46367 92734 167159 185468 334318 668636 33264641 38948047 66529282 77896094 133058564 155792188 7750661353 15501322706 31002645412