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231423044 = 22116349747
BaseRepresentation
bin11011100101100…
…11110001000100
3121010110111201212
431302303301010
5433221014134
634544110552
75510030516
oct1562636104
9533414655
10231423044
111096a5616
1265605458
1338c39c18
1422a41bb6
15154b4bce
hexdcb3c44

231423044 has 12 divisors (see below), whose sum is σ = 405346704. Its totient is φ = 115609704.

The previous prime is 231423041. The next prime is 231423061. The reversal of 231423044 is 440324132.

231423044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231423041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20222 + ... + 29525.

It is an arithmetic number, because the mean of its divisors is an integer number (33778892).

Almost surely, 2231423044 is an apocalyptic number.

It is an amenable number.

231423044 is a deficient number, since it is larger than the sum of its proper divisors (173923660).

231423044 is a wasteful number, since it uses less digits than its factorization.

231423044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50914 (or 50912 counting only the distinct ones).

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

The square root of 231423044 is about 15212.5949134262. The cubic root of 231423044 is about 613.9535768995.

Adding to 231423044 its reverse (440324132), we get a palindrome (671747176).

The spelling of 231423044 in words is "two hundred thirty-one million, four hundred twenty-three thousand, forty-four".

Divisors: 1 2 4 1163 2326 4652 49747 99494 198988 57855761 115711522 231423044