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31643424096 = 25317312392617
BaseRepresentation
bin11101011110000110…
…000101010101100000
310000200021200111102020
4131132012011111200
51004301204032341
622311540221440
72200103444514
oct353606052540
9100607614366
1031643424096
1112468984969
12617139a880
132ca39c30ab
141762804144
15c53054566
hex75e185560

31643424096 has 192 divisors, whose sum is σ = 91201904640. Its totient is φ = 9563258880.

The previous prime is 31643424091. The next prime is 31643424103. The reversal of 31643424096 is 69042434613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31643424091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12090180 + ... + 12092796.

It is an arithmetic number, because the mean of its divisors is an integer number (475009920).

Almost surely, 231643424096 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 31643424096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45600952320).

31643424096 is an abundant number, since it is smaller than the sum of its proper divisors (59558480544).

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

31643424096 is a wasteful number, since it uses less digits than its factorization.

31643424096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917 (or 2909 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 31643424096 in words is "thirty-one billion, six hundred forty-three million, four hundred twenty-four thousand, ninety-six".