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231342044 = 22122947059
BaseRepresentation
bin11011100100111…
…11111111011100
3121010022101121212
431302133333130
5433210421134
634542243552
75506242413
oct1562377734
9533271555
10231342044
1110964a77a
12655865b8
1338c0c0ab
1422a2047a
151549abce
hexdc9ffdc

231342044 has 12 divisors (see below), whose sum is σ = 405186600. Its totient is φ = 115574448.

The previous prime is 231342031. The next prime is 231342053. The reversal of 231342044 is 440243132.

It is a congruent number.

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, 18614 + ... + 28445.

It is an arithmetic number, because the mean of its divisors is an integer number (33765550).

Almost surely, 2231342044 is an apocalyptic number.

It is an amenable number.

231342044 is a deficient number, since it is larger than the sum of its proper divisors (173844556).

231342044 is a wasteful number, since it uses less digits than its factorization.

231342044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48292 (or 48290 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 231342044 is about 15209.9324127361. The cubic root of 231342044 is about 613.8819389128.

Adding to 231342044 its reverse (440243132), we get a palindrome (671585176).

The spelling of 231342044 in words is "two hundred thirty-one million, three hundred forty-two thousand, forty-four".

Divisors: 1 2 4 1229 2458 4916 47059 94118 188236 57835511 115671022 231342044