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12513249 = 327198623
BaseRepresentation
bin101111101110…
…111111100001
3212112201221200
4233232333201
511200410444
61124111413
7211234530
oct57567741
925481850
1012513249
117077431
124235569
1327917b8
14193a317
151172969
hexbeefe1

12513249 has 12 divisors (see below), whose sum is σ = 20656896. Its totient is φ = 7150392.

The previous prime is 12513227. The next prime is 12513269. The reversal of 12513249 is 94231521.

It is not a de Polignac number, because 12513249 - 29 = 12512737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12513209) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 99249 + ... + 99374.

It is an arithmetic number, because the mean of its divisors is an integer number (1721408).

Almost surely, 212513249 is an apocalyptic number.

It is an amenable number.

12513249 is a deficient number, since it is larger than the sum of its proper divisors (8143647).

12513249 is a wasteful number, since it uses less digits than its factorization.

12513249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198636 (or 198633 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 12513249 is about 3537.4071012537. The cubic root of 12513249 is about 232.1614079422.

The spelling of 12513249 in words is "twelve million, five hundred thirteen thousand, two hundred forty-nine".

Divisors: 1 3 7 9 21 63 198623 595869 1390361 1787607 4171083 12513249