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78672968 = 2311894011
BaseRepresentation
bin1001011000001…
…11010001001000
312111001000000122
410230013101020
5130120013333
611450122412
71643465153
oct454072110
9174030018
1078672968
1140455190
1222420408
13133b736a
14a63cc9a
156d90798
hex4b07448

78672968 has 16 divisors (see below), whose sum is σ = 160922160. Its totient is φ = 35760400.

The previous prime is 78672959. The next prime is 78672983. The reversal of 78672968 is 86927687.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446918 + ... + 447093.

It is an arithmetic number, because the mean of its divisors is an integer number (10057635).

Almost surely, 278672968 is an apocalyptic number.

It is an amenable number.

78672968 is an abundant number, since it is smaller than the sum of its proper divisors (82249192).

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

78672968 is a wasteful number, since it uses less digits than its factorization.

78672968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894028 (or 894024 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 78672968 is about 8869.7783512329. The cubic root of 78672968 is about 428.4911385253.

The spelling of 78672968 in words is "seventy-eight million, six hundred seventy-two thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 894011 1788022 3576044 7152088 9834121 19668242 39336484 78672968