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12897182 = 213194889
BaseRepresentation
bin110001001100…
…101110011110
3220021020121102
4301030232132
511300202212
61140233102
7214424054
oct61145636
926236542
1012897182
117309931
12439b792
13289748c
1419da1d4
1511eb5c2
hexc4cb9e

12897182 has 8 divisors (see below), whose sum is σ = 19364400. Its totient is φ = 6442384.

The previous prime is 12897173. The next prime is 12897191. The reversal of 12897182 is 28179821.

It is an interprime number because it is at equal distance from previous prime (12897173) and next prime (12897191).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×128971822 = 332674607082248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194 + ... + 5082.

It is an arithmetic number, because the mean of its divisors is an integer number (2420550).

Almost surely, 212897182 is an apocalyptic number.

12897182 is a deficient number, since it is larger than the sum of its proper divisors (6467218).

12897182 is a wasteful number, since it uses less digits than its factorization.

12897182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210.

The product of its digits is 16128, while the sum is 38.

The square root of 12897182 is about 3591.2646797472. The cubic root of 12897182 is about 234.5119310536.

The spelling of 12897182 in words is "twelve million, eight hundred ninety-seven thousand, one hundred eighty-two".

Divisors: 1 2 1319 2638 4889 9778 6448591 12897182