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79941059136 = 263538313421
BaseRepresentation
bin100101001110011011…
…0111100001001000000
321122100020012120100000
41022130312330021000
52302204402343021
6100420250200000
75530004535231
oct1123466741100
9248306176300
1079941059136
11309a2709a24
12135b0123000
1376ccb68c73
143c24dd5088
15212d229b26
hex129cdbc240

79941059136 has 168 divisors, whose sum is σ = 238261330944. Its totient is φ = 26575464960.

The previous prime is 79941059069. The next prime is 79941059137. The reversal of 79941059136 is 63195014997.

79941059136 is a `hidden beast` number, since 7 + 9 + 9 + 4 + 10 + 591 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (79941059137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5949706 + ... + 5963126.

It is an arithmetic number, because the mean of its divisors is an integer number (1418222208).

Almost surely, 279941059136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79941059136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119130665472).

79941059136 is an abundant number, since it is smaller than the sum of its proper divisors (158320271808).

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

79941059136 is a wasteful number, since it uses less digits than its factorization.

79941059136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13831 (or 13809 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

It can be divided in two parts, 7994105 and 9136, that added together give a square (8003241 = 28292).

The spelling of 79941059136 in words is "seventy-nine billion, nine hundred forty-one million, fifty-nine thousand, one hundred thirty-six".