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12901325 = 52516053
BaseRepresentation
bin110001001101…
…101111001101
3220021110021212
4301031233031
511300320300
61140304205
7214442123
oct61155715
926243255
1012901325
117311a58
1243a2065
132899328
1419db913
1511ec935
hexc4dbcd

12901325 has 6 divisors (see below), whose sum is σ = 15997674. Its totient is φ = 10321040.

The previous prime is 12901307. The next prime is 12901327. The reversal of 12901325 is 52310921.

It can be written as a sum of positive squares in 3 ways, for example, as 4251844 + 8649481 = 2062^2 + 2941^2 .

It is not a de Polignac number, because 12901325 - 214 = 12884941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12901325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12901327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258002 + ... + 258051.

It is an arithmetic number, because the mean of its divisors is an integer number (2666279).

Almost surely, 212901325 is an apocalyptic number.

It is an amenable number.

12901325 is a deficient number, since it is larger than the sum of its proper divisors (3096349).

12901325 is an equidigital number, since it uses as much as digits as its factorization.

12901325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516063 (or 516058 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 12901325 is about 3591.8414497302. The cubic root of 12901325 is about 234.5370393528.

The spelling of 12901325 in words is "twelve million, nine hundred one thousand, three hundred twenty-five".

Divisors: 1 5 25 516053 2580265 12901325