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12760625 = 54171201
BaseRepresentation
bin110000101011…
…011000110001
3220000022021202
4300223120301
511231320000
61133300545
7213314663
oct60533061
926008252
1012760625
117226279
124334755
13284a287
1419a2533
1511c0dd5
hexc2b631

12760625 has 20 divisors (see below), whose sum is σ = 16897716. Its totient is φ = 9600000.

The previous prime is 12760621. The next prime is 12760661. The reversal of 12760625 is 52606721.

It can be written as a sum of positive squares in 10 ways, for example, as 11806096 + 954529 = 3436^2 + 977^2 .

It is not a de Polignac number, because 12760625 - 22 = 12760621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12760621) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 10025 + ... + 11225.

Almost surely, 212760625 is an apocalyptic number.

It is an amenable number.

12760625 is a deficient number, since it is larger than the sum of its proper divisors (4137091).

12760625 is an equidigital number, since it uses as much as digits as its factorization.

12760625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 12760625 is about 3572.2017020320. The cubic root of 12760625 is about 233.6813118547.

The spelling of 12760625 in words is "twelve million, seven hundred sixty thousand, six hundred twenty-five".

Divisors: 1 5 17 25 85 125 425 625 1201 2125 6005 10625 20417 30025 102085 150125 510425 750625 2552125 12760625