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31252005052 = 2215217513439
BaseRepresentation
bin11101000110110000…
…111100000010111100
32222200000011100102121
4131012300330002330
51003001003130202
622205034532324
72154311442232
oct350660740274
988600140377
1031252005052
1112287a3aa54
1260822970a4
132c408974a8
141726834952
15c2d9d8537
hex746c3c0bc

31252005052 has 12 divisors (see below), whose sum is σ = 54694709440. Its totient is φ = 15624945216.

The previous prime is 31252005047. The next prime is 31252005137. The reversal of 31252005052 is 25050025213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195852 + ... + 317587.

Almost surely, 231252005052 is an apocalyptic number.

It is an amenable number.

31252005052 is a deficient number, since it is larger than the sum of its proper divisors (23442704388).

31252005052 is a wasteful number, since it uses less digits than its factorization.

31252005052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528660 (or 528658 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 31252005052 in words is "thirty-one billion, two hundred fifty-two million, five thousand, fifty-two".

Divisors: 1 2 4 15217 30434 60868 513439 1026878 2053756 7813001263 15626002526 31252005052