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231373132 = 22275321011
BaseRepresentation
bin11011100101001…
…11100101001100
3121010100222021021
431302213211030
5433212420012
634543043524
75506432144
oct1562474514
9533328237
10231373132
11109671071
12655a05a4
1338c202a3
1422a2b924
15154a5007
hexdca794c

231373132 has 12 divisors (see below), whose sum is σ = 405069336. Its totient is φ = 115639040.

The previous prime is 231373097. The next prime is 231373147.

231373132 is nontrivially palindromic in base 10.

231373132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2313731322 = 107067052422978848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231373097 and 231373106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507 + ... + 21517.

It is an arithmetic number, because the mean of its divisors is an integer number (33755778).

Almost surely, 2231373132 is an apocalyptic number.

It is an amenable number.

231373132 is a deficient number, since it is larger than the sum of its proper divisors (173696204).

231373132 is a wasteful number, since it uses less digits than its factorization.

231373132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23768 (or 23766 counting only the distinct ones).

The product of its digits is 2268, while the sum is 25.

The square root of 231373132 is about 15210.9543421838. The cubic root of 231373132 is about 613.9094357260.

The spelling of 231373132 in words is "two hundred thirty-one million, three hundred seventy-three thousand, one hundred thirty-two".

Divisors: 1 2 4 2753 5506 11012 21011 42022 84044 57843283 115686566 231373132