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12757109232 = 2437237473119
BaseRepresentation
bin10111110000110001…
…00000100111110000
31012221001202021222010
423320120200213300
5202111304443412
65505513042520
7631063432200
oct137030404760
935831667863
1012757109232
115457067a8a
1225803b6440
131283c7b15a
148903c0400
154e9e7433c
hex2f86209f0

12757109232 has 240 divisors, whose sum is σ = 40223139840. Its totient is φ = 3469810176.

The previous prime is 12757109231. The next prime is 12757109249. The reversal of 12757109232 is 23290175721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12757109231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4088569 + ... + 4091687.

It is an arithmetic number, because the mean of its divisors is an integer number (167596416).

Almost surely, 212757109232 is an apocalyptic number.

12757109232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12757109232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20111569920).

12757109232 is an abundant number, since it is smaller than the sum of its proper divisors (27466030608).

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

12757109232 is a wasteful number, since it uses less digits than its factorization.

12757109232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228 (or 3215 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 12757109232 in words is "twelve billion, seven hundred fifty-seven million, one hundred nine thousand, two hundred thirty-two".