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12541625 = 53100333
BaseRepresentation
bin101111110101…
…111010111001
3212121011212122
4233311322321
511202313000
61124451025
7211413335
oct57657271
925534778
1012541625
117096788
124249a75
1327a16a5
1419467c5
15117b085
hexbf5eb9

12541625 has 8 divisors (see below), whose sum is σ = 15652104. Its totient is φ = 10033200.

The previous prime is 12541603. The next prime is 12541637. The reversal of 12541625 is 52614521.

It can be written as a sum of positive squares in 4 ways, for example, as 59536 + 12482089 = 244^2 + 3533^2 .

It is not a de Polignac number, because 12541625 - 26 = 12541561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12541594 and 12541603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50042 + ... + 50291.

It is an arithmetic number, because the mean of its divisors is an integer number (1956513).

Almost surely, 212541625 is an apocalyptic number.

It is an amenable number.

12541625 is a deficient number, since it is larger than the sum of its proper divisors (3110479).

12541625 is an equidigital number, since it uses as much as digits as its factorization.

12541625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100348 (or 100338 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 12541625 is about 3541.4156773810. The cubic root of 12541625 is about 232.3367644437.

The spelling of 12541625 in words is "twelve million, five hundred forty-one thousand, six hundred twenty-five".

Divisors: 1 5 25 125 100333 501665 2508325 12541625