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10639853 = 78318313
BaseRepresentation
bin101000100101…
…100111101101
3202000120010122
4220211213231
510210433403
61020014325
7156302660
oct50454755
922016118
1010639853
116007974
1236913a5
132286b93
1415ad6d7
15e02838
hexa259ed

10639853 has 8 divisors (see below), whose sum is σ = 12307008. Its totient is φ = 9009504.

The previous prime is 10639843. The next prime is 10639859. The reversal of 10639853 is 35893601.

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

It is a de Polignac number, because none of the positive numbers 2k-10639853 is a prime.

It is a super-2 number, since 2×106398532 = 226412943723218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10639859) 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, 8576 + ... + 9737.

It is an arithmetic number, because the mean of its divisors is an integer number (1538376).

Almost surely, 210639853 is an apocalyptic number.

It is an amenable number.

10639853 is a deficient number, since it is larger than the sum of its proper divisors (1667155).

10639853 is an equidigital number, since it uses as much as digits as its factorization.

10639853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18403.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 10639853 is about 3261.8787531115. The cubic root of 10639853 is about 219.9438768685.

The spelling of 10639853 in words is "ten million, six hundred thirty-nine thousand, eight hundred fifty-three".

Divisors: 1 7 83 581 18313 128191 1519979 10639853