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12897196 = 22131971259
BaseRepresentation
bin110001001100…
…101110101100
3220021020121221
4301030232230
511300202241
61140233124
7214424104
oct61145654
926236557
1012897196
117309944
12439b7a4
1328974a0
1419da204
1511eb5d1
hexc4cbac

12897196 has 24 divisors (see below), whose sum is σ = 24449040. Its totient is φ = 5917632.

The previous prime is 12897191. The next prime is 12897197. The reversal of 12897196 is 69179821.

12897196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12897191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9615 + ... + 10873.

It is an arithmetic number, because the mean of its divisors is an integer number (1018710).

Almost surely, 212897196 is an apocalyptic number.

It is an amenable number.

12897196 is a deficient number, since it is larger than the sum of its proper divisors (11551844).

12897196 is a wasteful number, since it uses less digits than its factorization.

12897196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1471 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 12897196 is about 3591.2666289208. The cubic root of 12897196 is about 234.5120159084.

The spelling of 12897196 in words is "twelve million, eight hundred ninety-seven thousand, one hundred ninety-six".

Divisors: 1 2 4 13 26 52 197 394 788 1259 2518 2561 5036 5122 10244 16367 32734 65468 248023 496046 992092 3224299 6448598 12897196