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231253051311 = 32151170164129
BaseRepresentation
bin1101011101011111000…
…0011000011110101111
3211002220102102012010100
43113113300120132233
512242101240120221
6254123003242143
722464444334452
oct3272760303657
9732812365110
10231253051311
118a08a356227
123899a219353
1318a65191949
14b29ab09499
1560370b7926
hex35d7c187af

231253051311 has 12 divisors (see below), whose sum is σ = 336244320880. Its totient is φ = 153147715200.

The previous prime is 231253051297. The next prime is 231253051409. The reversal of 231253051311 is 113150352132.

231253051311 is a `hidden beast` number, since 2 + 312 + 5 + 30 + 5 + 1 + 311 = 666.

It is not a de Polignac number, because 231253051311 - 218 = 231252789167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231203051311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85080706 + ... + 85083423.

Almost surely, 2231253051311 is an apocalyptic number.

231253051311 is a deficient number, since it is larger than the sum of its proper divisors (104991269569).

231253051311 is a wasteful number, since it uses less digits than its factorization.

231253051311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170164286 (or 170164283 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 231253051311 in words is "two hundred thirty-one billion, two hundred fifty-three million, fifty-one thousand, three hundred eleven".

Divisors: 1 3 9 151 453 1359 170164129 510492387 1531477161 25694783479 77084350437 231253051311