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12838472232 = 2333714457739
BaseRepresentation
bin10111111010011101…
…11000101000101000
31020010201211222000120
423331032320220220
5202243122102412
65521541003240
7633102133125
oct137516705050
936121758016
1012838472232
115498a8a233
1225a36b3520
131297a97a41
1489b11d74c
15502196b8c
hex2fd3b8a28

12838472232 has 32 divisors (see below), whose sum is σ = 32963647200. Its totient is φ = 4163828544.

The previous prime is 12838472221. The next prime is 12838472239. The reversal of 12838472232 is 23227483821.

It is not an unprimeable number, because it can be changed into a prime (12838472239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7227982 + ... + 7229757.

It is an arithmetic number, because the mean of its divisors is an integer number (1030113975).

Almost surely, 212838472232 is an apocalyptic number.

12838472232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12838472232 is an abundant number, since it is smaller than the sum of its proper divisors (20125174968).

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

12838472232 is a wasteful number, since it uses less digits than its factorization.

12838472232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14457785 (or 14457781 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The spelling of 12838472232 in words is "twelve billion, eight hundred thirty-eight million, four hundred seventy-two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 222 296 444 888 14457739 28915478 43373217 57830956 86746434 115661912 173492868 346985736 534936343 1069872686 1604809029 2139745372 3209618058 4279490744 6419236116 12838472232