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8681353354680 = 2335896151132151
BaseRepresentation
bin111111001010100100011…
…1110111001110110111000
31010201221002102221001221220
41332111020332321312320
52114213402424322210
630244054135032040
71554131012655306
oct176251076716670
933657072831856
108681353354680
112847817712256
12b8260780b620
134ac856b82756
1422027330b276
15100c4ded0c70
hex7e548fb9db8

8681353354680 has 128 divisors (see below), whose sum is σ = 26341170969600. Its totient is φ = 2288626560000.

The previous prime is 8681353354679. The next prime is 8681353354727. The reversal of 8681353354680 is 864533531868.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65626605 + ... + 65758755.

It is an arithmetic number, because the mean of its divisors is an integer number (205790398200).

Almost surely, 28681353354680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8681353354680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13170585484800).

8681353354680 is an abundant number, since it is smaller than the sum of its proper divisors (17659817614920).

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

8681353354680 is a wasteful number, since it uses less digits than its factorization.

8681353354680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138405 (or 138401 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 8681353354680 in words is "eight trillion, six hundred eighty-one billion, three hundred fifty-three million, three hundred fifty-four thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 89 120 178 267 356 445 534 712 890 1068 1335 1780 2136 2670 3560 5340 6151 10680 12302 18453 24604 30755 36906 49208 61510 73812 92265 123020 132151 147624 184530 246040 264302 369060 396453 528604 547439 660755 738120 792906 1057208 1094878 1321510 1585812 1642317 1982265 2189756 2643020 2737195 3171624 3284634 3964530 4379512 5286040 5474390 6569268 7929060 8211585 10948780 11761439 13138536 15858120 16423170 21897560 23522878 32846340 35284317 47045756 58807195 65692680 70568634 94091512 117614390 141137268 176421585 235228780 282274536 352843170 470457560 705686340 812860801 1411372680 1625721602 2438582403 3251443204 4064304005 4877164806 6502886408 8128608010 9754329612 12192912015 16257216020 19508659224 24385824030 32514432040 48771648060 72344611289 97543296120 144689222578 217033833867 289378445156 361723056445 434067667734 578756890312 723446112890 868135335468 1085169169335 1446892225780 1736270670936 2170338338670 2893784451560 4340676677340 8681353354680