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27131713161 = 371291986341
BaseRepresentation
bin11001010001001011…
…010001011010001001
32121000212002211112020
4121101023101122021
5421031204310121
620244130435053
71650230520360
oct312113213211
977025084466
1027131713161
1110563165743
125312432a89
132735079057
14145552a7d7
15a8be011c6
hex6512d1689

27131713161 has 8 divisors (see below), whose sum is σ = 41343562944. Its totient is φ = 15503836080.

The previous prime is 27131713127. The next prime is 27131713177. The reversal of 27131713161 is 16131713172.

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

It is not a de Polignac number, because 27131713161 - 214 = 27131696777 is a prime.

It is a super-2 number, since 2×271317131612 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27131713561) 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, 645993150 + ... + 645993191.

It is an arithmetic number, because the mean of its divisors is an integer number (5167945368).

Almost surely, 227131713161 is an apocalyptic number.

27131713161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27131713161 is a deficient number, since it is larger than the sum of its proper divisors (14211849783).

27131713161 is a wasteful number, since it uses less digits than its factorization.

27131713161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291986351.

The product of its digits is 5292, while the sum is 33.

The spelling of 27131713161 in words is "twenty-seven billion, one hundred thirty-one million, seven hundred thirteen thousand, one hundred sixty-one".

Divisors: 1 3 7 21 1291986341 3875959023 9043904387 27131713161