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79313838912 = 263271121773131
BaseRepresentation
bin100100111011101111…
…0010010001101000000
321120201111222110221100
41021313132102031000
52244413320321122
6100234122454400
75505320335650
oct1116736221500
9246644873840
1079313838912
113070065a100
1213456064400
13762cc2c739
143ba59a4360
1520e3131aac
hex1277792340

79313838912 has 1008 divisors, whose sum is σ = 308863691136. Its totient is φ = 18977587200.

The previous prime is 79313838853. The next prime is 79313838941. The reversal of 79313838912 is 21983831397.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 143 ways as a sum of consecutive naturals, for example, 605449087 + ... + 605449217.

It is an arithmetic number, because the mean of its divisors is an integer number (306412392).

Almost surely, 279313838912 is an apocalyptic number.

79313838912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79313838912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154431845568).

79313838912 is an abundant number, since it is smaller than the sum of its proper divisors (229549852224).

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

79313838912 is a wasteful number, since it uses less digits than its factorization.

79313838912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 244 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 79313838912 in words is "seventy-nine billion, three hundred thirteen million, eight hundred thirty-eight thousand, nine hundred twelve".