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13051625 = 53193541
BaseRepresentation
bin110001110010…
…011011101001
3220120002110112
4301302123221
511320123000
61143424105
7215636246
oct61623351
926502415
1013051625
117404974
124455035
13291c872
141a3a5cd
15122c235
hexc726e9

13051625 has 16 divisors (see below), whose sum is σ = 16403088. Its totient is φ = 10368000.

The previous prime is 13051601. The next prime is 13051637. The reversal of 13051625 is 52615031.

13051625 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 8 ways, for example, as 6620329 + 6431296 = 2573^2 + 2536^2 .

It is not a de Polignac number, because 13051625 - 26 = 13051561 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 13051625.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23855 + ... + 24395.

It is an arithmetic number, because the mean of its divisors is an integer number (1025193).

Almost surely, 213051625 is an apocalyptic number.

It is an amenable number.

13051625 is a deficient number, since it is larger than the sum of its proper divisors (3351463).

13051625 is an equidigital number, since it uses as much as digits as its factorization.

13051625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13051625 is about 3612.7032814777. The cubic root of 13051625 is about 235.4443080639. Note that the first 3 decimals are identical.

Adding to 13051625 its reverse (52615031), we get a palindrome (65666656).

The spelling of 13051625 in words is "thirteen million, fifty-one thousand, six hundred twenty-five".

Divisors: 1 5 25 125 193 541 965 2705 4825 13525 24125 67625 104413 522065 2610325 13051625