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102445748954 = 2234351792593
BaseRepresentation
bin101111101101000111…
…1100001001011011010
3100210102121202021002022
41133122033201023122
53134302102431304
6115021331534442
710254462332633
oct1373217411332
9323377667068
10102445748954
113a4a0a5552a
1217a30a5a422
139878425883
144d5bbcc88a
1529e8ceaebe
hex17da3e12da

102445748954 has 16 divisors (see below), whose sum is σ = 164078937792. Its totient is φ = 47856355008.

The previous prime is 102445748917. The next prime is 102445748969. The reversal of 102445748954 is 459847544201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102445748896 and 102445748905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25894319 + ... + 25898274.

It is an arithmetic number, because the mean of its divisors is an integer number (10254933612).

Almost surely, 2102445748954 is an apocalyptic number.

102445748954 is a deficient number, since it is larger than the sum of its proper divisors (61633188838).

102445748954 is a wasteful number, since it uses less digits than its factorization.

102445748954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51792661.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 102445748954 in words is "one hundred two billion, four hundred forty-five million, seven hundred forty-eight thousand, nine hundred fifty-four".

Divisors: 1 2 23 43 46 86 989 1978 51792593 103585186 1191229639 2227081499 2382459278 4454162998 51222874477 102445748954