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12953685 = 353312609
BaseRepresentation
bin110001011010…
…100001010101
3220101010010010
4301122201111
511304004220
61141350433
7215050563
oct61324125
926333103
1012953685
117348328
124408419
1328b7104
141a12a33
15120d1e0
hexc5a855

12953685 has 16 divisors (see below), whose sum is σ = 20796480. Its totient is φ = 6885120.

The previous prime is 12953659. The next prime is 12953701. The reversal of 12953685 is 58635921.

It is not a de Polignac number, because 12953685 - 25 = 12953653 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3661 + ... + 6269.

It is an arithmetic number, because the mean of its divisors is an integer number (1299780).

Almost surely, 212953685 is an apocalyptic number.

12953685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12953685 is a deficient number, since it is larger than the sum of its proper divisors (7842795).

12953685 is a wasteful number, since it uses less digits than its factorization.

12953685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948.

The product of its digits is 64800, while the sum is 39.

The square root of 12953685 is about 3599.1228097969. The cubic root of 12953685 is about 234.8539004366.

The spelling of 12953685 in words is "twelve million, nine hundred fifty-three thousand, six hundred eighty-five".

Divisors: 1 3 5 15 331 993 1655 2609 4965 7827 13045 39135 863579 2590737 4317895 12953685