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231412404 = 223163193613
BaseRepresentation
bin11011100101100…
…01001010110100
3121010102222010210
431302301022310
5433220144104
634543545420
75506654506
oct1562611264
9533388123
10231412404
11109698623
12655bb270
1338c35122
1422a3bd76
15154b1989
hexdcb12b4

231412404 has 48 divisors (see below), whose sum is σ = 546980672. Its totient is φ = 76142592.

The previous prime is 231412399. The next prime is 231412411. The reversal of 231412404 is 404214132.

231412404 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377202 + ... + 377814.

Almost surely, 2231412404 is an apocalyptic number.

It is an amenable number.

231412404 is an abundant number, since it is smaller than the sum of its proper divisors (315568268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231412404 is a wasteful number, since it uses less digits than its factorization.

231412404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 231412404 is about 15212.2451991808. The cubic root of 231412404 is about 613.9441676288.

Adding to 231412404 its reverse (404214132), we get a palindrome (635626536).

The spelling of 231412404 in words is "two hundred thirty-one million, four hundred twelve thousand, four hundred four".

Divisors: 1 2 3 4 6 12 163 193 326 386 489 579 613 652 772 978 1158 1226 1839 1956 2316 2452 3678 7356 31459 62918 94377 99919 118309 125836 188754 199838 236618 299757 354927 377508 399676 473236 599514 709854 1199028 1419708 19284367 38568734 57853101 77137468 115706202 231412404