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12312325090 = 25131910694663
BaseRepresentation
bin10110111011101111…
…10010101111100010
31011210001210220211101
423131313302233202
5200203423400330
65353423505014
7614053015342
oct133567625742
934701726741
1012312325090
115248a9408a
12247745816a
131212a89580
1484b2bcd22
154c0db64ca
hex2dddf2be2

12312325090 has 64 divisors (see below), whose sum is σ = 25152019200. Its totient is φ = 4301869824.

The previous prime is 12312325073. The next prime is 12312325169. The reversal of 12312325090 is 9052321321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2638099 + ... + 2642761.

It is an arithmetic number, because the mean of its divisors is an integer number (393000300).

Almost surely, 212312325090 is an apocalyptic number.

12312325090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312325090 is an abundant number, since it is smaller than the sum of its proper divisors (12839694110).

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

12312325090 is a wasteful number, since it uses less digits than its factorization.

12312325090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 12312325090 in words is "twelve billion, three hundred twelve million, three hundred twenty-five thousand, ninety".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 190 247 494 1069 1235 2138 2470 4663 5345 9326 10690 13897 20311 23315 27794 40622 46630 60619 69485 88597 101555 121238 138970 177194 203110 264043 303095 442985 528086 606190 885970 1151761 1320215 2303522 2640430 4984747 5758805 9969494 11517610 24923735 49847470 64801711 94710193 129603422 189420386 324008555 473550965 648017110 947101930 1231232509 2462465018 6156162545 12312325090