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231027561115 = 51313925570289
BaseRepresentation
bin1101011100101001010…
…0001101001010011011
3211002022201010002201121
43113022110031022123
512241121023423430
6254044350230111
722456035603601
oct3271224151233
9732281102647
10231027561115
1189a8404309a
12389367b5337
1318a2a5512b0
14b278bad871
1560223c5a7a
hex35ca50d29b

231027561115 has 16 divisors (see below), whose sum is σ = 300706610400. Its totient is φ = 169377587712.

The previous prime is 231027561113. The next prime is 231027561119. The reversal of 231027561115 is 511165720132.

231027561115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231027561115 - 21 = 231027561113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231027561113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12776110 + ... + 12794179.

It is an arithmetic number, because the mean of its divisors is an integer number (18794163150).

Almost surely, 2231027561115 is an apocalyptic number.

231027561115 is a deficient number, since it is larger than the sum of its proper divisors (69679049285).

231027561115 is a wasteful number, since it uses less digits than its factorization.

231027561115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25570446.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 231027561115 in words is "two hundred thirty-one billion, twenty-seven million, five hundred sixty-one thousand, one hundred fifteen".

Divisors: 1 5 13 65 139 695 1807 9035 25570289 127851445 332413757 1662068785 3554270171 17771350855 46205512223 231027561115