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12931843306680 = 2332543398278817
BaseRepresentation
bin1011110000101110110111…
…1011010011010010111000
31200210021100101122202210200
42330023231323103102320
53143333403341303210
643300450134042200
72503203063305604
oct274135573232270
950707311582720
1012931843306680
114136400461281
12154a3401a9360
1372a6103b479c
14329c9415a504
151765c0cd60c0
hexbc2eded34b8

12931843306680 has 96 divisors (see below), whose sum is σ = 42038182040400. Its totient is φ = 3447696365568.

The previous prime is 12931843306673. The next prime is 12931843306741. The reversal of 12931843306680 is 8660334813921.

12931843306680 is a `hidden beast` number, since 1 + 293 + 1 + 8 + 43 + 306 + 6 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2577369 + ... + 5701448.

Almost surely, 212931843306680 is an apocalyptic number.

12931843306680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12931843306680 is an abundant number, since it is smaller than the sum of its proper divisors (29106338733720).

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

12931843306680 is a wasteful number, since it uses less digits than its factorization.

12931843306680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283173 (or 8283166 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 12931843306680 in words is "twelve trillion, nine hundred thirty-one billion, eight hundred forty-three million, three hundred six thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 4339 8678 13017 17356 21695 26034 34712 39051 43390 52068 65085 78102 86780 104136 130170 156204 173560 195255 260340 312408 390510 520680 781020 1562040 8278817 16557634 24836451 33115268 41394085 49672902 66230536 74509353 82788170 99345804 124182255 149018706 165576340 198691608 248364510 298037412 331152680 372546765 496729020 596074824 745093530 993458040 1490187060 2980374120 35921786963 71843573926 107765360889 143687147852 179608934815 215530721778 287374295704 323296082667 359217869630 431061443556 538826804445 646592165334 718435739260 862122887112 1077653608890 1293184330668 1436871478520 1616480413335 2155307217780 2586368661336 3232960826670 4310614435560 6465921653340 12931843306680