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12928474 = 2131926171
BaseRepresentation
bin110001010100…
…010111011010
3220022211112101
4301110113122
511302202344
61141034014
7214614226
oct61242732
926284471
1012928474
117330399
1243b590a
1328a87b0
141a07786
1512059d4
hexc545da

12928474 has 16 divisors (see below), whose sum is σ = 21984480. Its totient is φ = 5652720.

The previous prime is 12928459. The next prime is 12928477. The reversal of 12928474 is 47482921.

12928474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12928477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12592 + ... + 13579.

It is an arithmetic number, because the mean of its divisors is an integer number (1374030).

Almost surely, 212928474 is an apocalyptic number.

12928474 is a deficient number, since it is larger than the sum of its proper divisors (9056006).

12928474 is a wasteful number, since it uses less digits than its factorization.

12928474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26205.

The product of its digits is 32256, while the sum is 37.

The square root of 12928474 is about 3595.6187228348. The cubic root of 12928474 is about 234.7014406794.

The spelling of 12928474 in words is "twelve million, nine hundred twenty-eight thousand, four hundred seventy-four".

Divisors: 1 2 13 19 26 38 247 494 26171 52342 340223 497249 680446 994498 6464237 12928474