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12315522604 = 2272115712209
BaseRepresentation
bin10110111100000111…
…11111011000101100
31011210021211100222211
423132003333120230
5200210233210404
65354020220204
7614122133500
oct133603773054
934707740884
1012315522604
11524a878460
12247853a664
131213638aa8
1484b8b2300
154c12e8b04
hex2de0ff62c

12315522604 has 36 divisors (see below), whose sum is σ = 27350061480. Its totient is φ = 4798254720.

The previous prime is 12315522563. The next prime is 12315522607. The reversal of 12315522604 is 40622551321.

It is not an unprimeable number, because it can be changed into a prime (12315522607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2853949 + ... + 2858260.

It is an arithmetic number, because the mean of its divisors is an integer number (759723930).

Almost surely, 212315522604 is an apocalyptic number.

12315522604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12315522604 is an abundant number, since it is smaller than the sum of its proper divisors (15034538876).

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

12315522604 is a wasteful number, since it uses less digits than its factorization.

12315522604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712238 (or 5712229 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 12315522604 in words is "twelve billion, three hundred fifteen million, five hundred twenty-two thousand, six hundred four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 5712209 11424418 22848836 39985463 62834299 79970926 125668598 159941852 251337196 279898241 439840093 559796482 879680186 1119592964 1759360372 3078880651 6157761302 12315522604