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12693211804 = 22713113308597
BaseRepresentation
bin10111101001001001…
…10000101010011100
31012202121111222011201
423310210300222130
5201443430234204
65455311325244
7626356343260
oct136444605234
935677458151
1012693211804
115423a94999
122562b20824
131273968220
14885b0a0a0
154e45519a4
hex2f4930a9c

12693211804 has 48 divisors (see below), whose sum is σ = 27581254848. Its totient is φ = 4977036288.

The previous prime is 12693211787. The next prime is 12693211819. The reversal of 12693211804 is 40811239621.

It is a super-2 number, since 2×126932118042 (a number of 21 digits) contains 22 as substring.

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, 113167 + ... + 195430.

It is an arithmetic number, because the mean of its divisors is an integer number (574609476).

Almost surely, 212693211804 is an apocalyptic number.

12693211804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12693211804 is an abundant number, since it is smaller than the sum of its proper divisors (14888043044).

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

12693211804 is a wasteful number, since it uses less digits than its factorization.

12693211804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308734 (or 308732 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 12693211804 in words is "twelve billion, six hundred ninety-three million, two hundred eleven thousand, eight hundred four".

Divisors: 1 2 4 7 13 14 26 28 52 91 113 182 226 364 452 791 1469 1582 2938 3164 5876 10283 20566 41132 308597 617194 1234388 2160179 4011761 4320358 8023522 8640716 16047044 28082327 34871461 56164654 69742922 112329308 139485844 244100227 453328993 488200454 906657986 976400908 1813315972 3173302951 6346605902 12693211804