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79613670553 = 1920023209269
BaseRepresentation
bin100101000100101011…
…0000011010010011001
321121111102011111121221
41022021112003102121
52301022044424203
6100323553132041
75515621014454
oct1121126032231
9247442144557
1079613670553
113084492904a
121351a55a021
13767a09ba01
143bd373249b
15210e60aabd
hex1289583499

79613670553 has 8 divisors (see below), whose sum is σ = 83808449600. Its totient is φ = 75419350128.

The previous prime is 79613670529. The next prime is 79613670641. The reversal of 79613670553 is 35507631697.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79613670553 - 29 = 79613670041 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 79613670553.

It is not an unprimeable number, because it can be changed into a prime (79613670503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275803 + ... + 485071.

It is an arithmetic number, because the mean of its divisors is an integer number (10476056200).

Almost surely, 279613670553 is an apocalyptic number.

It is an amenable number.

79613670553 is a deficient number, since it is larger than the sum of its proper divisors (4194779047).

79613670553 is a wasteful number, since it uses less digits than its factorization.

79613670553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229311.

The product of its (nonzero) digits is 3572100, while the sum is 52.

The spelling of 79613670553 in words is "seventy-nine billion, six hundred thirteen million, six hundred seventy thousand, five hundred fifty-three".

Divisors: 1 19 20023 209269 380437 3976111 4190193187 79613670553