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13085394 = 237311557
BaseRepresentation
bin110001111010…
…101011010010
3220121210210020
4301322223102
511322213034
61144244310
7216136560
oct61725322
926553706
1013085394
117428283
124470696
13293204a
141a48a30
151237249
hexc7aad2

13085394 has 16 divisors (see below), whose sum is σ = 29909568. Its totient is φ = 3738672.

The previous prime is 13085389. The next prime is 13085399. The reversal of 13085394 is 49358031.

It is an interprime number because it is at equal distance from previous prime (13085389) and next prime (13085399).

It is a super-2 number, since 2×130853942 = 342455072270472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13085399) 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, 155737 + ... + 155820.

It is an arithmetic number, because the mean of its divisors is an integer number (1869348).

Almost surely, 213085394 is an apocalyptic number.

13085394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13085394 is an abundant number, since it is smaller than the sum of its proper divisors (16824174).

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

13085394 is a wasteful number, since it uses less digits than its factorization.

13085394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311569.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 13085394 is about 3617.3739093436. The cubic root of 13085394 is about 235.6471913985.

The spelling of 13085394 in words is "thirteen million, eighty-five thousand, three hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 42 311557 623114 934671 1869342 2180899 4361798 6542697 13085394