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31872929248 = 2519311691051
BaseRepresentation
bin11101101011110001…
…100100110111100000
310001021021112120022001
4131223301210313200
51010233432213443
622350415253344
72205561266656
oct355361446740
9101237476261
1031872929248
111257648a546
12621621a254
13300c40b064
1417850a6dd6
15c6828ad4d
hex76bc64de0

31872929248 has 48 divisors (see below), whose sum is σ = 68183216640. Its totient is φ = 14610672000.

The previous prime is 31872929239. The next prime is 31872929251. The reversal of 31872929248 is 84292927813.

It is a congruent number.

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, 826678 + ... + 864373.

It is an arithmetic number, because the mean of its divisors is an integer number (1420483680).

Almost surely, 231872929248 is an apocalyptic number.

31872929248 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

31872929248 is an abundant number, since it is smaller than the sum of its proper divisors (36310287392).

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

31872929248 is a wasteful number, since it uses less digits than its factorization.

31872929248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691111 (or 1691103 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The spelling of 31872929248 in words is "thirty-one billion, eight hundred seventy-two million, nine hundred twenty-nine thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 19 31 32 38 62 76 124 152 248 304 496 589 608 992 1178 2356 4712 9424 18848 1691051 3382102 6764204 13528408 27056816 32129969 52422581 54113632 64259938 104845162 128519876 209690324 257039752 419380648 514079504 838761296 996029039 1028159008 1677522592 1992058078 3984116156 7968232312 15936464624 31872929248