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12982678 = 215142989
BaseRepresentation
bin110001100001…
…100110010110
3220102120212221
4301201212112
511310421203
61142132554
7215231242
oct61414626
926376787
1012982678
117368095
12442115a
1328c7377
141a1d422
151216abd
hexc61996

12982678 has 8 divisors (see below), whose sum is σ = 19603440. Its totient is φ = 6448200.

The previous prime is 12982667. The next prime is 12982687. The reversal of 12982678 is 87628921.

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

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 3 ways as a sum of consecutive naturals, for example, 21193 + ... + 21796.

It is an arithmetic number, because the mean of its divisors is an integer number (2450430).

Almost surely, 212982678 is an apocalyptic number.

12982678 is a deficient number, since it is larger than the sum of its proper divisors (6620762).

12982678 is a wasteful number, since it uses less digits than its factorization.

12982678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43142.

The product of its digits is 96768, while the sum is 43.

The square root of 12982678 is about 3603.1483455445. The cubic root of 12982678 is about 235.0289869178.

The spelling of 12982678 in words is "twelve million, nine hundred eighty-two thousand, six hundred seventy-eight".

Divisors: 1 2 151 302 42989 85978 6491339 12982678