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12239234868 = 2237314700167
BaseRepresentation
bin10110110011000001…
…11110011100110100
31011120222021112220010
423121200332130310
5200031221003433
65342253140220
7612204531330
oct133140763464
934528245803
1012239234868
115210802343
122456a8a670
1312008a8313
148416d47c0
154b9779e63
hex2d983e734

12239234868 has 48 divisors (see below), whose sum is σ = 33690804224. Its totient is φ = 3384119520.

The previous prime is 12239234857. The next prime is 12239234893. The reversal of 12239234868 is 86843293221.

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, 2347480 + ... + 2352687.

Almost surely, 212239234868 is an apocalyptic number.

It is an amenable number.

12239234868 is an abundant number, since it is smaller than the sum of its proper divisors (21451569356).

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

12239234868 is a wasteful number, since it uses less digits than its factorization.

12239234868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700212 (or 4700210 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The spelling of 12239234868 in words is "twelve billion, two hundred thirty-nine million, two hundred thirty-four thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 62 84 93 124 186 217 372 434 651 868 1302 2604 4700167 9400334 14100501 18800668 28201002 32901169 56402004 65802338 98703507 131604676 145705177 197407014 291410354 394814028 437115531 582820708 874231062 1019936239 1748462124 2039872478 3059808717 4079744956 6119617434 12239234868