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79397866974 = 2313232977829
BaseRepresentation
bin100100111110001111…
…0110100110111011110
321120221101002112202210
41021330132310313132
52300101323220344
6100250323501250
75510360506506
oct1117436646736
9246841075683
1079397866974
1130744031688
121347a227826
13764447039a
143bb2bd8a06
1520ea6cddb9
hex127c7b4dde

79397866974 has 8 divisors (see below), whose sum is σ = 158795733960. Its totient is φ = 26465955656.

The previous prime is 79397866927. The next prime is 79397866987. The reversal of 79397866974 is 47966879397.

It is a sphenic number, since it is the product of 3 distinct primes.

79397866974 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 79397866896 and 79397866905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6616488909 + ... + 6616488920.

It is an arithmetic number, because the mean of its divisors is an integer number (19849466745).

Almost surely, 279397866974 is an apocalyptic number.

79397866974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79397866974 is a wasteful number, since it uses less digits than its factorization.

79397866974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13232977834.

The product of its digits is 864162432, while the sum is 75.

The spelling of 79397866974 in words is "seventy-nine billion, three hundred ninety-seven million, eight hundred sixty-six thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 13232977829 26465955658 39698933487 79397866974