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79716106920 = 23351723174149
BaseRepresentation
bin100101000111101110…
…0110100001010101000
321121202112220210220110
41022033130310022220
52301224310410140
6100342052454320
75521303504662
oct1121734641250
9247675823813
1079716106920
1130897733aaa
121354891a3a0
137695386448
143c03199532
1521185e2380
hex128f7342a8

79716106920 has 192 divisors, whose sum is σ = 262241856000. Its totient is φ = 19361525760.

The previous prime is 79716106919. The next prime is 79716106927. The reversal of 79716106920 is 2960161797.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 79716106920.

It is not an unprimeable number, because it can be changed into a prime (79716106927) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1038006 + ... + 1112154.

It is an arithmetic number, because the mean of its divisors is an integer number (1365843000).

Almost surely, 279716106920 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 79716106920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131120928000).

79716106920 is an abundant number, since it is smaller than the sum of its proper divisors (182525749080).

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

79716106920 is a wasteful number, since it uses less digits than its factorization.

79716106920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74228 (or 74207 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 48.

The spelling of 79716106920 in words is "seventy-nine billion, seven hundred sixteen million, one hundred six thousand, nine hundred twenty".