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12668253 = 3131372371
BaseRepresentation
bin110000010100…
…110101011101
3212211121120120
4300110311131
511220341003
61131305153
7212451453
oct60246535
925747516
1012668253
117172934
1242ab1b9
132817210
14197a9d3
1511a3853
hexc14d5d

12668253 has 16 divisors (see below), whose sum is σ = 18330816. Its totient is φ = 7735680.

The previous prime is 12668237. The next prime is 12668261. The reversal of 12668253 is 35286621.

12668253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12668253 - 24 = 12668237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4158 + ... + 6528.

It is an arithmetic number, because the mean of its divisors is an integer number (1145676).

Almost surely, 212668253 is an apocalyptic number.

12668253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12668253 is a deficient number, since it is larger than the sum of its proper divisors (5662563).

12668253 is a wasteful number, since it uses less digits than its factorization.

12668253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524.

The product of its digits is 17280, while the sum is 33.

The square root of 12668253 is about 3559.2489376272. The cubic root of 12668253 is about 233.1160860011.

It can be divided in two parts, 12668 and 253, that added together give a palindrome (12921).

The spelling of 12668253 in words is "twelve million, six hundred sixty-eight thousand, two hundred fifty-three".

Divisors: 1 3 13 39 137 411 1781 2371 5343 7113 30823 92469 324827 974481 4222751 12668253