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12996025 = 52721032
BaseRepresentation
bin110001100100…
…110110111001
3220110021012021
4301210312321
511311333100
61142314441
7215315200
oct61446671
926407167
1012996025
117377119
124428a21
132900473
141a24237
15121aa1a
hexc64db9

12996025 has 27 divisors (see below), whose sum is σ = 18929871. Its totient is φ = 8825040.

The previous prime is 12996023. The next prime is 12996043. The reversal of 12996025 is 52069921.

The square root of 12996025 is 3605.

It is a perfect power (a square), and thus also a powerful number.

12996025 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4678569 + 8317456 = 2163^2 + 2884^2 .

It is not a de Polignac number, because 12996025 - 21 = 12996023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12996023) 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 26 ways as a sum of consecutive naturals, for example, 126124 + ... + 126226.

Almost surely, 212996025 is an apocalyptic number.

12996025 is the 3605-th square number.

12996025 is the 1803-rd centered octagonal number.

It is an amenable number.

12996025 is a deficient number, since it is larger than the sum of its proper divisors (5933846).

12996025 is an equidigital number, since it uses as much as digits as its factorization.

12996025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The cubic root of 12996025 is about 235.1095008024.

The spelling of 12996025 in words is "twelve million, nine hundred ninety-six thousand, twenty-five".

Divisors: 1 5 7 25 35 49 103 175 245 515 721 1225 2575 3605 5047 10609 18025 25235 53045 74263 126175 265225 371315 519841 1856575 2599205 12996025