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102920980964 = 22314611800451
BaseRepresentation
bin101111111011010010…
…0011000100111100100
3100211122201222112211212
41133312210120213210
53141240232342324
6115140425450552
710302322621664
oct1376644304744
9324581875755
10102920980964
113a71523535a
1217b44040a58
139922a18249
144da4d781a4
152a258c070e
hex17f69189e4

102920980964 has 24 divisors (see below), whose sum is σ = 186325176576. Its totient is φ = 49692420000.

The previous prime is 102920980963. The next prime is 102920980979. The reversal of 102920980964 is 469089029201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102920980961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843062 + ... + 957389.

It is an arithmetic number, because the mean of its divisors is an integer number (7763549024).

Almost surely, 2102920980964 is an apocalyptic number.

It is an amenable number.

102920980964 is a deficient number, since it is larger than the sum of its proper divisors (83404195612).

102920980964 is a wasteful number, since it uses less digits than its factorization.

102920980964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800947 (or 1800945 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 102920980964 in words is "one hundred two billion, nine hundred twenty million, nine hundred eighty thousand, nine hundred sixty-four".

Divisors: 1 2 4 31 62 124 461 922 1844 14291 28582 57164 1800451 3600902 7201804 55813981 111627962 223255924 830007911 1660015822 3320031644 25730245241 51460490482 102920980964