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79472870927 = 83957504469
BaseRepresentation
bin100101000000011110…
…0111100011000001111
321121010121020010211222
41022000330330120033
52300230023332202
6100302003233555
75512261154102
oct1120074743017
9247117203758
1079472870927
113078240021a
121349b3788bb
137656b71718
143bbcb60739
1521020974a2
hex1280f3c60f

79472870927 has 4 divisors (see below), whose sum is σ = 80430375480. Its totient is φ = 78515366376.

The previous prime is 79472870879. The next prime is 79472870929. The reversal of 79472870927 is 72907827497.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79472870927 - 28 = 79472870671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79472870927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79472870929) 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 3 ways as a sum of consecutive naturals, for example, 478752152 + ... + 478752317.

It is an arithmetic number, because the mean of its divisors is an integer number (20107593870).

Almost surely, 279472870927 is an apocalyptic number.

79472870927 is a deficient number, since it is larger than the sum of its proper divisors (957504553).

79472870927 is an equidigital number, since it uses as much as digits as its factorization.

79472870927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957504552.

The product of its (nonzero) digits is 24893568, while the sum is 62.

The spelling of 79472870927 in words is "seventy-nine billion, four hundred seventy-two million, eight hundred seventy thousand, nine hundred twenty-seven".

Divisors: 1 83 957504469 79472870927