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10681806863 = 713117382493
BaseRepresentation
bin10011111001010111…
…10111000000001111
31000120102201000022102
421330223313000033
5133334020304423
64523540105315
7525463601030
oct117453670017
930512630272
1010681806863
114591668662
1220a139523b
1310130299a0
14734922a87
15427b89c28
hex27caf700f

10681806863 has 8 divisors (see below), whose sum is σ = 13146839328. Its totient is φ = 8451539424.

The previous prime is 10681806857. The next prime is 10681806913. The reversal of 10681806863 is 36860818601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10681806863 - 26 = 10681806799 is a prime.

It is a super-2 number, since 2×106818068632 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10681806823) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 58691156 + ... + 58691337.

It is an arithmetic number, because the mean of its divisors is an integer number (1643354916).

Almost surely, 210681806863 is an apocalyptic number.

10681806863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10681806863 is a deficient number, since it is larger than the sum of its proper divisors (2465032465).

10681806863 is a wasteful number, since it uses less digits than its factorization.

10681806863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117382513.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 10681806863 in words is "ten billion, six hundred eighty-one million, eight hundred six thousand, eight hundred sixty-three".

Divisors: 1 7 13 91 117382493 821677451 1525972409 10681806863