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12940683 = 37616223
BaseRepresentation
bin110001010111…
…010110001011
3220100110021120
4301113112023
511303100213
61141210323
7214664640
oct61272613
926313246
1012940683
117339588
1244009a3
1328b1212
141a0bdc7
151209423
hexc5758b

12940683 has 8 divisors (see below), whose sum is σ = 19719168. Its totient is φ = 7394664.

The previous prime is 12940661. The next prime is 12940703. The reversal of 12940683 is 38604921.

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

It is not a de Polignac number, because 12940683 - 26 = 12940619 is a prime.

It is a super-2 number, since 2×129406832 = 334922553012978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12940643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 308091 + ... + 308132.

It is an arithmetic number, because the mean of its divisors is an integer number (2464896).

Almost surely, 212940683 is an apocalyptic number.

12940683 is a deficient number, since it is larger than the sum of its proper divisors (6778485).

12940683 is an equidigital number, since it uses as much as digits as its factorization.

12940683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616233.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12940683 is about 3597.3160828596. The cubic root of 12940683 is about 234.7752975104.

The spelling of 12940683 in words is "twelve million, nine hundred forty thousand, six hundred eighty-three".

Divisors: 1 3 7 21 616223 1848669 4313561 12940683