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10690812105 = 351096538723
BaseRepresentation
bin10011111010011100…
…01101100011001001
31000121001122112011220
421331032031203021
5133343321441410
64524501112253
7525633255261
oct117516154311
930531575156
1010690812105
114596759406
1220a43b8689
131014b6082c
14735bc87a1
15428868070
hex27d38d8c9

10690812105 has 16 divisors (see below), whose sum is σ = 17262231360. Its totient is φ = 5649455808.

The previous prime is 10690812103. The next prime is 10690812109. The reversal of 10690812105 is 50121809601.

It is not a de Polignac number, because 10690812105 - 21 = 10690812103 is a prime.

It is a super-2 number, since 2×106908121052 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10690812103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3267727 + ... + 3270996.

It is an arithmetic number, because the mean of its divisors is an integer number (1078889460).

Almost surely, 210690812105 is an apocalyptic number.

10690812105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10690812105 is a deficient number, since it is larger than the sum of its proper divisors (6571419255).

10690812105 is a wasteful number, since it uses less digits than its factorization.

10690812105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538840.

The product of its (nonzero) digits is 4320, while the sum is 33.

The spelling of 10690812105 in words is "ten billion, six hundred ninety million, eight hundred twelve thousand, one hundred five".

Divisors: 1 3 5 15 109 327 545 1635 6538723 19616169 32693615 98080845 712720807 2138162421 3563604035 10690812105