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13092785 = 56014357
BaseRepresentation
bin110001111100…
…011110110001
3220122011220222
4301330132301
511322432120
61144342425
7216200246
oct61743661
926564828
1013092785
117432892
124474a15
132935514
141a4b5cd
151239525
hexc7c7b1

13092785 has 8 divisors (see below), whose sum is σ = 15741096. Its totient is φ = 10454400.

The previous prime is 13092763. The next prime is 13092791. The reversal of 13092785 is 58729031.

It can be written as a sum of positive squares in 4 ways, for example, as 7862416 + 5230369 = 2804^2 + 2287^2 .

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-13092785 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (1967637).

Almost surely, 213092785 is an apocalyptic number.

It is an amenable number.

13092785 is a deficient number, since it is larger than the sum of its proper divisors (2648311).

13092785 is an equidigital number, since it uses as much as digits as its factorization.

13092785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 13092785 is about 3618.3953625882. The cubic root of 13092785 is about 235.6915497770.

The spelling of 13092785 in words is "thirteen million, ninety-two thousand, seven hundred eighty-five".

Divisors: 1 5 601 3005 4357 21785 2618557 13092785