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231351113 = 7171944127
BaseRepresentation
bin11011100101000…
…10001101001001
3121010022212001202
431302202031021
5433211213423
634542353545
75506311020
oct1562421511
9533285052
10231351113
11109656574
126558b8b5
1338c13266
1422a238b7
151549d728
hexdca2349

231351113 has 8 divisors (see below), whose sum is σ = 279954432. Its totient is φ = 186636096.

The previous prime is 231351103. The next prime is 231351119. The reversal of 231351113 is 311153132.

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 231351113 - 24 = 231351097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231351119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971945 + ... + 972182.

It is an arithmetic number, because the mean of its divisors is an integer number (34994304).

Almost surely, 2231351113 is an apocalyptic number.

It is an amenable number.

231351113 is a deficient number, since it is larger than the sum of its proper divisors (48603319).

231351113 is a wasteful number, since it uses less digits than its factorization.

231351113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944151.

The product of its digits is 270, while the sum is 20.

The square root of 231351113 is about 15210.2305373719. The cubic root of 231351113 is about 613.8899605452.

The spelling of 231351113 in words is "two hundred thirty-one million, three hundred fifty-one thousand, one hundred thirteen".

Divisors: 1 7 17 119 1944127 13608889 33050159 231351113