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79680475900 = 2252796804759
BaseRepresentation
bin100101000110101010…
…0111001001011111100
321121200001212120100001
41022031110321023330
52301141200212100
6100334341044044
75520361604314
oct1121524711374
9247601776301
1079680475900
1130879607983
12135389b6624
13768ab8c3bc
143bdc562444
152115404d6a
hex128d5392fc

79680475900 has 18 divisors (see below), whose sum is σ = 172906632920. Its totient is φ = 31872190320.

The previous prime is 79680475879. The next prime is 79680475913. The reversal of 79680475900 is 957408697.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 398402280 + ... + 398402479.

Almost surely, 279680475900 is an apocalyptic number.

It is an amenable number.

79680475900 is an abundant number, since it is smaller than the sum of its proper divisors (93226157020).

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

79680475900 is a wasteful number, since it uses less digits than its factorization.

79680475900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796804773 (or 796804766 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 79680475900 in words is "seventy-nine billion, six hundred eighty million, four hundred seventy-five thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 796804759 1593609518 3187219036 3984023795 7968047590 15936095180 19920118975 39840237950 79680475900