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12641252 = 2213243101
BaseRepresentation
bin110000001110…
…001111100100
3212210020112112
4300032033210
511214010002
61130540152
7212306651
oct60161744
925706475
1012641252
117154618
124297658
132807b40
141970c28
15119a852
hexc0e3e4

12641252 has 12 divisors (see below), whose sum is σ = 23823996. Its totient is φ = 5834400.

The previous prime is 12641249. The next prime is 12641257. The reversal of 12641252 is 25214621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4946176 + 7695076 = 2224^2 + 2774^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641257) 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 3 ways as a sum of consecutive naturals, for example, 121499 + ... + 121602.

It is an arithmetic number, because the mean of its divisors is an integer number (1985333).

Almost surely, 212641252 is an apocalyptic number.

It is an amenable number.

12641252 is a deficient number, since it is larger than the sum of its proper divisors (11182744).

12641252 is a wasteful number, since it uses less digits than its factorization.

12641252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243118 (or 243116 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 12641252 is about 3555.4538388228. The cubic root of 12641252 is about 232.9503476876.

Adding to 12641252 its reverse (25214621), we get a palindrome (37855873).

The spelling of 12641252 in words is "twelve million, six hundred forty-one thousand, two hundred fifty-two".

Divisors: 1 2 4 13 26 52 243101 486202 972404 3160313 6320626 12641252