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86681353486680 = 23325240781537463
BaseRepresentation
bin10011101101011000010011…
…010010001000000101011000
3102100220122201120011221200200
4103231120103102020011120
542330141402443033210
6504204510345302200
724154343513530461
oct2355302322100530
9370818646157620
1086681353486680
112568a3a02a07a7
12987b515a94960
13394a02a4c86c4
141759585447d68
15a04baa9660c0
hex4ed613488158

86681353486680 has 48 divisors (see below), whose sum is σ = 281714398832880. Its totient is φ = 23115027596352.

The previous prime is 86681353486669. The next prime is 86681353486759. The reversal of 86681353486680 is 8668435318668.

86681353486680 is a `hidden beast` number, since 8 + 6 + 6 + 8 + 1 + 3 + 534 + 8 + 6 + 6 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 86681353486599 and 86681353486608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120390768372 + ... + 120390769091.

It is an arithmetic number, because the mean of its divisors is an integer number (5869049975685).

Almost surely, 286681353486680 is an apocalyptic number.

It is an amenable number.

86681353486680 is an abundant number, since it is smaller than the sum of its proper divisors (195033045346200).

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

86681353486680 is a wasteful number, since it uses less digits than its factorization.

86681353486680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240781537480 (or 240781537473 counting only the distinct ones).

The product of its (nonzero) digits is 955514880, while the sum is 72.

The spelling of 86681353486680 in words is "eighty-six trillion, six hundred eighty-one billion, three hundred fifty-three million, four hundred eighty-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 240781537463 481563074926 722344612389 963126149852 1203907687315 1444689224778 1926252299704 2167033837167 2407815374630 2889378449556 3611723061945 4334067674334 4815630749260 5778756899112 7223446123890 8668135348668 9631261498520 10835169185835 14446892247780 17336270697336 21670338371670 28893784495560 43340676743340 86681353486680