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12685182492 = 22343832411229
BaseRepresentation
bin10111101000001100…
…01000011000011100
31012202001102001000210
423310012020120130
5201434401314432
65454423252420
7626231162223
oct136406103034
935661361023
1012685182492
11541a5003a4
1225602aa110
1312720b6658
14884a19cba
154e39b78cc
hex2f418861c

12685182492 has 96 divisors (see below), whose sum is σ = 30804238080. Its totient is φ = 4060062720.

The previous prime is 12685182463. The next prime is 12685182493. The reversal of 12685182492 is 29428158621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12685182493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10320934 + ... + 10322162.

It is an arithmetic number, because the mean of its divisors is an integer number (320877480).

Almost surely, 212685182492 is an apocalyptic number.

12685182492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12685182492 is an abundant number, since it is smaller than the sum of its proper divisors (18119055588).

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

12685182492 is a wasteful number, since it uses less digits than its factorization.

12685182492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1601 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The spelling of 12685182492 in words is "twelve billion, six hundred eighty-five million, one hundred eighty-two thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 43 83 86 129 166 172 241 249 258 332 482 498 516 723 964 996 1229 1446 2458 2892 3569 3687 4916 7138 7374 10363 10707 14276 14748 20003 20726 21414 31089 40006 41452 42828 52847 60009 62178 80012 102007 105694 120018 124356 158541 204014 211388 240036 296189 306021 317082 408028 592378 612042 634164 860129 888567 1184756 1224084 1720258 1777134 2580387 3440516 3554268 4386301 5160774 8772602 10321548 12736127 13158903 17545204 24583687 25472254 26317806 38208381 49167374 50944508 52635612 73751061 76416762 98334748 147502122 152833524 295004244 1057098541 2114197082 3171295623 4228394164 6342591246 12685182492