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12893125 = 5472421
BaseRepresentation
bin110001001011…
…101111000101
3220021001001011
4301023233011
511300040000
61140202221
7214406200
oct61135705
926231034
1012893125
117306883
124399371
13289568b
1419d8937
1511ea2ba
hexc4bbc5

12893125 has 30 divisors (see below), whose sum is σ = 18786174. Its totient is φ = 8820000.

The previous prime is 12893099. The next prime is 12893129. The reversal of 12893125 is 52139821.

It can be written as a sum of positive squares in 5 ways, for example, as 9529569 + 3363556 = 3087^2 + 1834^2 .

It is a de Polignac number, because none of the positive numbers 2k-12893125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12893129) 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 29 ways as a sum of consecutive naturals, for example, 30415 + ... + 30835.

Almost surely, 212893125 is an apocalyptic number.

It is an amenable number.

12893125 is a deficient number, since it is larger than the sum of its proper divisors (5893049).

12893125 is an frugal number, since it uses more digits than its factorization.

12893125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 433 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 12893125 is about 3590.6997925196. The cubic root of 12893125 is about 234.4873387387.

The spelling of 12893125 in words is "twelve million, eight hundred ninety-three thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 49 125 175 245 421 625 875 1225 2105 2947 4375 6125 10525 14735 20629 30625 52625 73675 103145 263125 368375 515725 1841875 2578625 12893125