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231112132 = 2257778033
BaseRepresentation
bin11011100011001…
…11110111000100
3121002212201020121
431301213313010
5433131042012
634533311324
75504264206
oct1561476704
9532781217
10231112132
11109502a69
1265495544
1338b5b554
14229a0776
1515452a07
hexdc67dc4

231112132 has 6 divisors (see below), whose sum is σ = 404446238. Its totient is φ = 115556064.

The previous prime is 231112117. The next prime is 231112153. The reversal of 231112132 is 231211132.

It can be written as a sum of positive squares in only one way, i.e., 132388036 + 98724096 = 11506^2 + 9936^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28889013 + ... + 28889020.

Almost surely, 2231112132 is an apocalyptic number.

It is an amenable number.

231112132 is a deficient number, since it is larger than the sum of its proper divisors (173334106).

231112132 is a wasteful number, since it uses less digits than its factorization.

231112132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57778037 (or 57778035 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 231112132 is about 15202.3725779893. The cubic root of 231112132 is about 613.6785091007.

Adding to 231112132 its reverse (231211132), we get a palindrome (462323264).

The spelling of 231112132 in words is "two hundred thirty-one million, one hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 57778033 115556066 231112132