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12925679668 = 22112961166063
BaseRepresentation
bin11000000100110111…
…00011100000110100
31020100210221120010121
430002123203200310
5202432433222133
65534334101324
7635211315166
oct140233434064
936323846117
1012925679668
1155332334a0
12260894a844
1312acb7c885
148a8940936
15509b7102d
hex3026e3834

12925679668 has 48 divisors (see below), whose sum is σ = 25945839360. Its totient is φ = 5579683200.

The previous prime is 12925679629. The next prime is 12925679677. The reversal of 12925679668 is 86697652921.

It is a Harshad number since it is a multiple of its sum of digits (61).

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, 5196 + ... + 160867.

It is an arithmetic number, because the mean of its divisors is an integer number (540538320).

Almost surely, 212925679668 is an apocalyptic number.

It is an amenable number.

12925679668 is an abundant number, since it is smaller than the sum of its proper divisors (13020159692).

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

12925679668 is a wasteful number, since it uses less digits than its factorization.

12925679668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166168 (or 166166 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 61.

The spelling of 12925679668 in words is "twelve billion, nine hundred twenty-five million, six hundred seventy-nine thousand, six hundred sixty-eight".

Divisors: 1 2 4 11 22 29 44 58 61 116 122 244 319 638 671 1276 1342 1769 2684 3538 7076 19459 38918 77836 166063 332126 664252 1826693 3653386 4815827 7306772 9631654 10129843 19263308 20259686 40519372 52974097 105948194 111428273 211896388 222856546 293765447 445713092 587530894 1175061788 3231419917 6462839834 12925679668