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12793256 = 237228451
BaseRepresentation
bin110000110011…
…010110101000
3220001222001022
4300303112220
511233341011
61134112012
7213512060
oct60632650
926058038
1012793256
117248843
12434b608
13285c098
1419b03a0
1511ca8db
hexc335a8

12793256 has 16 divisors (see below), whose sum is σ = 27414240. Its totient is φ = 5482800.

The previous prime is 12793247. The next prime is 12793279. The reversal of 12793256 is 65239721.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 114170 + ... + 114281.

It is an arithmetic number, because the mean of its divisors is an integer number (1713390).

Almost surely, 212793256 is an apocalyptic number.

It is an amenable number.

12793256 is an abundant number, since it is smaller than the sum of its proper divisors (14620984).

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

12793256 is a wasteful number, since it uses less digits than its factorization.

12793256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228464 (or 228460 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 12793256 is about 3576.7661371692. The cubic root of 12793256 is about 233.8803293906.

The spelling of 12793256 in words is "twelve million, seven hundred ninety-three thousand, two hundred fifty-six".

Divisors: 1 2 4 7 8 14 28 56 228451 456902 913804 1599157 1827608 3198314 6396628 12793256