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79992028 = 2231645097
BaseRepresentation
bin1001100010010…
…01010011011100
312120112000102201
410301021103130
5130434221103
611534301244
71660630624
oct461112334
9176460381
1079992028
1141176216
1222957824
131375987c
14a8a3884
15705151d
hex4c494dc

79992028 has 12 divisors (see below), whose sum is σ = 144501952. Its totient is φ = 38705760.

The previous prime is 79992019. The next prime is 79992041. The reversal of 79992028 is 82029997.

It is a congruent 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, 322425 + ... + 322672.

Almost surely, 279992028 is an apocalyptic number.

It is an amenable number.

79992028 is a deficient number, since it is larger than the sum of its proper divisors (64509924).

79992028 is a wasteful number, since it uses less digits than its factorization.

79992028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645132 (or 645130 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 79992028 is about 8943.8262505485. The cubic root of 79992028 is about 430.8726249031.

The spelling of 79992028 in words is "seventy-nine million, nine hundred ninety-two thousand, twenty-eight".

Divisors: 1 2 4 31 62 124 645097 1290194 2580388 19998007 39996014 79992028