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102913856188 = 221113179919329
BaseRepresentation
bin101111111011000100…
…1001101001010111100
3100211122020120120111021
41133312021031022330
53141231421344223
6115140013033524
710302205226023
oct1376611151274
9324566516437
10102913856188
113a711209410
1217b417858a4
1399213c22c0
144da40418ba
152a24e6465d
hex17f624d2bc

102913856188 has 24 divisors (see below), whose sum is σ = 211585132080. Its totient is φ = 43180638720.

The previous prime is 102913856183. The next prime is 102913856261. The reversal of 102913856188 is 881658319201.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102913856183) 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, 89959093 + ... + 89960236.

It is an arithmetic number, because the mean of its divisors is an integer number (8816047170).

Almost surely, 2102913856188 is an apocalyptic number.

It is an amenable number.

102913856188 is an abundant number, since it is smaller than the sum of its proper divisors (108671275892).

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

102913856188 is a wasteful number, since it uses less digits than its factorization.

102913856188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179919357 (or 179919355 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 52.

The spelling of 102913856188 in words is "one hundred two billion, nine hundred thirteen million, eight hundred fifty-six thousand, one hundred eighty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 179919329 359838658 719677316 1979112619 2338951277 3958225238 4677902554 7916450476 9355805108 25728464047 51456928094 102913856188