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107978156 = 22111331117
BaseRepresentation
bin1100110111110…
…01110110101100
321112011212011222
412123321312230
5210120300111
614414202512
72450541056
oct633716654
9245155158
10107978156
1155a50650
12301b3438
13194a8000
14104aa8d6
15972d7db
hex66f9dac

107978156 has 48 divisors (see below), whose sum is σ = 223510560. Its totient is φ = 45264960.

The previous prime is 107978153. The next prime is 107978183. The reversal of 107978156 is 651879701.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (107978153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96110 + ... + 97226.

It is an arithmetic number, because the mean of its divisors is an integer number (4656470).

Almost surely, 2107978156 is an apocalyptic number.

It is an amenable number.

107978156 is an abundant number, since it is smaller than the sum of its proper divisors (115532404).

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

107978156 is a wasteful number, since it uses less digits than its factorization.

107978156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 44.

The square root of 107978156 is about 10391.2538223258. The cubic root of 107978156 is about 476.1882067695.

The spelling of 107978156 in words is "one hundred seven million, nine hundred seventy-eight thousand, one hundred fifty-six".

Divisors: 1 2 4 11 13 22 26 44 52 143 169 286 338 572 676 1117 1859 2197 2234 3718 4394 4468 7436 8788 12287 14521 24167 24574 29042 48334 49148 58084 96668 159731 188773 319462 377546 638924 755092 2076503 2454049 4153006 4908098 8306012 9816196 26994539 53989078 107978156