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31382808576 = 211376710891
BaseRepresentation
bin11101001110100011…
…111010100000000000
310000000010021212010120
4131032203322200000
51003232444333301
622230030300240
72160460320510
oct351643724000
9100003255116
1031382808576
1112344860639
1260ba057680
132c61a04922
141739d63840
15c3a224e36
hex74e8fa800

31382808576 has 192 divisors, whose sum is σ = 97055562240. Its totient is φ = 8831877120.

The previous prime is 31382808563. The next prime is 31382808593. The reversal of 31382808576 is 67580828313.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2876091 + ... + 2886981.

It is an arithmetic number, because the mean of its divisors is an integer number (505497720).

Almost surely, 231382808576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31382808576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48527781120).

31382808576 is an abundant number, since it is smaller than the sum of its proper divisors (65672753664).

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

31382808576 is a wasteful number, since it uses less digits than its factorization.

31382808576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10990 (or 10970 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 31382808576 in words is "thirty-one billion, three hundred eighty-two million, eight hundred eight thousand, five hundred seventy-six".