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12040431230 = 252352349701
BaseRepresentation
bin10110011011010101…
…00110011001111110
31011002010012021120102
423031222212121332
5144124322244410
65310432121102
7604241656022
oct131552463176
934063167512
1012040431230
115119567213
122400396192
13119b64c729
14823144382
154a70aa2a5
hex2cdaa667e

12040431230 has 16 divisors (see below), whose sum is σ = 22615071264. Its totient is φ = 4606773600.

The previous prime is 12040431181. The next prime is 12040431251. The reversal of 12040431230 is 3213404021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26174621 + ... + 26175080.

It is an arithmetic number, because the mean of its divisors is an integer number (1413441954).

Almost surely, 212040431230 is an apocalyptic number.

12040431230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12040431230 is a deficient number, since it is larger than the sum of its proper divisors (10574640034).

12040431230 is a wasteful number, since it uses less digits than its factorization.

12040431230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52349731.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12040431230 its reverse (3213404021), we get a palindrome (15253835251).

The spelling of 12040431230 in words is "twelve billion, forty million, four hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 52349701 104699402 261748505 523497010 1204043123 2408086246 6020215615 12040431230