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10856931 = 317212881
BaseRepresentation
bin101001011010…
…100111100011
3202102120220120
4221122213203
510234410211
61024411323
7161165601
oct51324743
922376816
1010856931
116145a78
123776b43
132331927
141628871
15e46d06
hexa5a9e3

10856931 has 8 divisors (see below), whose sum is σ = 15327504. Its totient is φ = 6812160.

The previous prime is 10856929. The next prime is 10856939. The reversal of 10856931 is 13965801.

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

It is not a de Polignac number, because 10856931 - 21 = 10856929 is a prime.

It is a super-2 number, since 2×108569312 = 235745901477522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 10856892 and 10856901.

It is not an unprimeable number, because it can be changed into a prime (10856939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106390 + ... + 106491.

It is an arithmetic number, because the mean of its divisors is an integer number (1915938).

Almost surely, 210856931 is an apocalyptic number.

10856931 is a deficient number, since it is larger than the sum of its proper divisors (4470573).

10856931 is a wasteful number, since it uses less digits than its factorization.

10856931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212901.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 10856931 is about 3294.9857359327. The cubic root of 10856931 is about 221.4296086964.

The spelling of 10856931 in words is "ten million, eight hundred fifty-six thousand, nine hundred thirty-one".

Divisors: 1 3 17 51 212881 638643 3618977 10856931