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12928974 = 232154829
BaseRepresentation
bin110001010100…
…011111001110
3220022212012220
4301110133032
511302211344
61141040210
7214615542
oct61243716
926285186
1012928974
117330803
1243b6066
1328a8aa6
141a07a22
151205c19
hexc547ce

12928974 has 8 divisors (see below), whose sum is σ = 25857960. Its totient is φ = 4309656.

The previous prime is 12928969. The next prime is 12928999. The reversal of 12928974 is 47982921.

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

12928974 is an admirable number.

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, 1077409 + ... + 1077420.

It is an arithmetic number, because the mean of its divisors is an integer number (3232245).

Almost surely, 212928974 is an apocalyptic number.

12928974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12928974 is a wasteful number, since it uses less digits than its factorization.

12928974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154834.

The product of its digits is 72576, while the sum is 42.

The square root of 12928974 is about 3595.6882512253. The cubic root of 12928974 is about 234.7044662803.

The spelling of 12928974 in words is "twelve million, nine hundred twenty-eight thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 2154829 4309658 6464487 12928974