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12853585 = 52570717
BaseRepresentation
bin110001000010…
…000101010001
3220012000210201
4301002011101
511242303320
61135255201
7214153003
oct61020521
926160721
1012853585
11728a0a8
12437a501
132880694
1419c8373
1511dd70a
hexc42151

12853585 has 4 divisors (see below), whose sum is σ = 15424308. Its totient is φ = 10282864.

The previous prime is 12853579. The next prime is 12853597. The reversal of 12853585 is 58535821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8785296 + 4068289 = 2964^2 + 2017^2 .

It is a cyclic number.

It is not a de Polignac number, because 12853585 - 25 = 12853553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285354 + ... + 1285363.

It is an arithmetic number, because the mean of its divisors is an integer number (3856077).

Almost surely, 212853585 is an apocalyptic number.

It is an amenable number.

12853585 is a deficient number, since it is larger than the sum of its proper divisors (2570723).

12853585 is an equidigital number, since it uses as much as digits as its factorization.

12853585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570722.

The product of its digits is 48000, while the sum is 37.

The square root of 12853585 is about 3585.1896742014. The cubic root of 12853585 is about 234.2473885461.

It can be divided in two parts, 128535 and 85, that multiplied together give a triangular number (10925475 = T4674).

The spelling of 12853585 in words is "twelve million, eight hundred fifty-three thousand, five hundred eighty-five".

Divisors: 1 5 2570717 12853585