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79510552763161 = 132293223412
BaseRepresentation
bin10010000101000001111110…
…010000001101101100011001
3101102112010122010112020000111
4102011001332100031230121
540410200103001410121
6441034351011404321
722514306422213222
oct2205017620155431
9342463563466014
1079510552763161
1123375266220913
128b018172b36a1
133549a7509ba00
14158c48d0a2249
1592d3ba4a02e1
hex48507e40db19

79510552763161 has 27 divisors (see below), whose sum is σ = 86428995535287. Its totient is φ = 73112619003840.

The previous prime is 79510552763113. The next prime is 79510552763177. The reversal of 79510552763161 is 16136725501597.

The square root of 79510552763161 is 8916869.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 16298830426761 + 63211722336400 = 4037181^2 + 7950580^2 .

It is not a de Polignac number, because 79510552763161 - 229 = 79510015892249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79510552763096 and 79510552763105.

It is not an unprimeable number, because it can be changed into a prime (79510552763261) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 33964352851 + ... + 33964355191.

Almost surely, 279510552763161 is an apocalyptic number.

79510552763161 is the 8916869-th square number.

79510552763161 is the 4458435-th centered octagonal number.

It is an amenable number.

79510552763161 is a deficient number, since it is larger than the sum of its proper divisors (6918442772126).

79510552763161 is an frugal number, since it uses more digits than its factorization.

79510552763161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294 (or 2647 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 58.

The spelling of 79510552763161 in words is "seventy-nine trillion, five hundred ten billion, five hundred fifty-two million, seven hundred sixty-three thousand, one hundred sixty-one".

Divisors: 1 13 169 293 2341 3809 30433 49517 85849 395629 685913 1116037 5480281 8916869 14508481 71243653 115919297 200972509 926167489 1605722333 2612642617 20874390329 33964354021 271367074277 470476643569 6116196366397 79510552763161