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123678968 = 2372976157
BaseRepresentation
bin1110101111100…
…11000011111000
322121201112122112
413113303003320
5223130211333
620134511452
73031153040
oct727630370
9277645575
10123678968
11638a4926
1235505588
131c81462a
14125d6720
15acd0948
hex75f30f8

123678968 has 32 divisors (see below), whose sum is σ = 274168800. Its totient is φ = 51176832.

The previous prime is 123678953. The next prime is 123678979. The reversal of 123678968 is 869876321.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 36455 + ... + 39702.

It is an arithmetic number, because the mean of its divisors is an integer number (8567775).

Almost surely, 2123678968 is an apocalyptic number.

It is an amenable number.

123678968 is an abundant number, since it is smaller than the sum of its proper divisors (150489832).

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

123678968 is a wasteful number, since it uses less digits than its factorization.

123678968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76199 (or 76195 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 123678968 is about 11121.1046213944. The cubic root of 123678968 is about 498.2323824200.

The spelling of 123678968 in words is "one hundred twenty-three million, six hundred seventy-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 29 56 58 116 203 232 406 812 1624 76157 152314 304628 533099 609256 1066198 2132396 2208553 4264792 4417106 8834212 15459871 17668424 30919742 61839484 123678968