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231042244 = 2257760561
BaseRepresentation
bin11011100010101…
…10110011000100
3121002202011101011
431301112303010
5433121322434
634532012004
75503553356
oct1561266304
9532664334
10231042244
11109465504
1265461004
1338b357b4
14229830d6
151543be64
hexdc56cc4

231042244 has 6 divisors (see below), whose sum is σ = 404323934. Its totient is φ = 115521120.

The previous prime is 231042233. The next prime is 231042269. The reversal of 231042244 is 442240132.

It is a happy number.

231042244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 160985344 + 70056900 = 12688^2 + 8370^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28880277 + ... + 28880284.

Almost surely, 2231042244 is an apocalyptic number.

It is an amenable number.

231042244 is a deficient number, since it is larger than the sum of its proper divisors (173281690).

231042244 is a wasteful number, since it uses less digits than its factorization.

231042244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57760565 (or 57760563 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 231042244 is about 15200.0738156102. The cubic root of 231042244 is about 613.6166443438.

Adding to 231042244 its reverse (442240132), we get a palindrome (673282376).

The spelling of 231042244 in words is "two hundred thirty-one million, forty-two thousand, two hundred forty-four".

Divisors: 1 2 4 57760561 115521122 231042244