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12916680 = 2335715377
BaseRepresentation
bin110001010001…
…011111001000
3220022020100120
4301101133020
511301313210
61140503240
7214534650
oct61213710
926266316
1012916680
117322547
1243aab20
1328a330a
141a03360
151202270
hexc517c8

12916680 has 64 divisors (see below), whose sum is σ = 44288640. Its totient is φ = 2952192.

The previous prime is 12916679. The next prime is 12916721. The reversal of 12916680 is 8661921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6849 + ... + 8528.

It is an arithmetic number, because the mean of its divisors is an integer number (692010).

Almost surely, 212916680 is an apocalyptic number.

12916680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12916680 is an abundant number, since it is smaller than the sum of its proper divisors (31371960).

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

12916680 is a wasteful number, since it uses less digits than its factorization.

12916680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15398 (or 15394 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12916680 is about 3593.9782970964. The cubic root of 12916680 is about 234.6300501724.

The spelling of 12916680 in words is "twelve million, nine hundred sixteen thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 15377 30754 46131 61508 76885 92262 107639 123016 153770 184524 215278 230655 307540 322917 369048 430556 461310 538195 615080 645834 861112 922620 1076390 1291668 1614585 1845240 2152780 2583336 3229170 4305560 6458340 12916680