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79142884 = 2257134651
BaseRepresentation
bin1001011011110…
…01111111100100
312111220212121221
410231321333210
5130230033014
611504150124
71650463162
oct455717744
9174825557
1079142884
1140746247
1222608344
1313520212
14a722232
156e34b24
hex4b79fe4

79142884 has 12 divisors (see below), whose sum is σ = 138746608. Its totient is φ = 39501000.

The previous prime is 79142867. The next prime is 79142891. The reversal of 79142884 is 48824197.

It is a self number, because there is not a number n which added to its sum of digits gives 79142884.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15042 + ... + 19609.

Almost surely, 279142884 is an apocalyptic number.

It is an amenable number.

79142884 is a deficient number, since it is larger than the sum of its proper divisors (59603724).

79142884 is a wasteful number, since it uses less digits than its factorization.

79142884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35226 (or 35224 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 79142884 is about 8896.2286391482. The cubic root of 79142884 is about 429.3425756940.

The spelling of 79142884 in words is "seventy-nine million, one hundred forty-two thousand, eight hundred eighty-four".

Divisors: 1 2 4 571 1142 2284 34651 69302 138604 19785721 39571442 79142884