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231412232 = 23109265381
BaseRepresentation
bin11011100101100…
…01001000001000
3121010102221220102
431302301020020
5433220142412
634543544532
75506654142
oct1562611010
9533387812
10231412232
11109698487
12655bb148
1338c3501c
1422a3bc92
15154b18c2
hexdcb1208

231412232 has 16 divisors (see below), whose sum is σ = 437880300. Its totient is φ = 114644160.

The previous prime is 231412231. The next prime is 231412249. The reversal of 231412232 is 232214132.

It can be written as a sum of positive squares in 2 ways, for example, as 223981156 + 7431076 = 14966^2 + 2726^2 .

It is a super-2 number, since 2×2314122322 = 107103242238443648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231412231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131819 + ... + 133562.

Almost surely, 2231412232 is an apocalyptic number.

It is an amenable number.

231412232 is a deficient number, since it is larger than the sum of its proper divisors (206468068).

231412232 is a wasteful number, since it uses less digits than its factorization.

231412232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265496 (or 265492 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 231412232 is about 15212.2395458394. The cubic root of 231412232 is about 613.9440155217.

Adding to 231412232 its reverse (232214132), we get a palindrome (463626364).

The spelling of 231412232 in words is "two hundred thirty-one million, four hundred twelve thousand, two hundred thirty-two".

Divisors: 1 2 4 8 109 218 436 872 265381 530762 1061524 2123048 28926529 57853058 115706116 231412232