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12951146 = 213238317
BaseRepresentation
bin110001011001…
…111001101010
3220100222122002
4301121321222
511303414041
61141331002
7215040305
oct61317152
926328562
1012951146
11734642a
124406a62
1328b5c00
141a11b3c
15120c59b
hexc59e6a

12951146 has 12 divisors (see below), whose sum is σ = 21036582. Its totient is φ = 5977296.

The previous prime is 12951131. The next prime is 12951151. The reversal of 12951146 is 64115921.

It can be written as a sum of positive squares in 3 ways, for example, as 7480225 + 5470921 = 2735^2 + 2339^2 .

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 5 ways as a sum of consecutive naturals, for example, 18821 + ... + 19496.

Almost surely, 212951146 is an apocalyptic number.

12951146 is a deficient number, since it is larger than the sum of its proper divisors (8085436).

12951146 is a wasteful number, since it uses less digits than its factorization.

12951146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38345 (or 38332 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 12951146 is about 3598.7700676759. The cubic root of 12951146 is about 234.8385551760.

The spelling of 12951146 in words is "twelve million, nine hundred fifty-one thousand, one hundred forty-six".

Divisors: 1 2 13 26 169 338 38317 76634 498121 996242 6475573 12951146