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13086858 = 2319114797
BaseRepresentation
bin110001111011…
…000010001010
3220121212210110
4301323002022
511322234413
61144255150
7216144051
oct61730212
926555713
1013086858
117429394
1244714b6
132932905
141a49398
1512378c3
hexc7b08a

13086858 has 16 divisors (see below), whose sum is σ = 27551520. Its totient is φ = 4132656.

The previous prime is 13086851. The next prime is 13086881. The reversal of 13086858 is 85868031.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13086851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57285 + ... + 57512.

It is an arithmetic number, because the mean of its divisors is an integer number (1721970).

Almost surely, 213086858 is an apocalyptic number.

13086858 is an abundant number, since it is smaller than the sum of its proper divisors (14464662).

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

13086858 is a wasteful number, since it uses less digits than its factorization.

13086858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114821.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 13086858 is about 3617.5762604263. The cubic root of 13086858 is about 235.6559791767.

The spelling of 13086858 in words is "thirteen million, eighty-six thousand, eight hundred fifty-eight".

Divisors: 1 2 3 6 19 38 57 114 114797 229594 344391 688782 2181143 4362286 6543429 13086858