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12513116 = 2271140627
BaseRepresentation
bin101111101110…
…111101011100
3212112201202202
4233232331130
511200404431
61124111032
7211234250
oct57567534
925481682
1012513116
117077320
124235478
132791715
14193a260
1511728cb
hexbeef5c

12513116 has 24 divisors (see below), whose sum is σ = 27302016. Its totient is φ = 4875120.

The previous prime is 12513101. The next prime is 12513157. The reversal of 12513116 is 61131521.

It is a congruent number.

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, 20006 + ... + 20621.

It is an arithmetic number, because the mean of its divisors is an integer number (1137584).

Almost surely, 212513116 is an apocalyptic number.

It is an amenable number.

12513116 is an abundant number, since it is smaller than the sum of its proper divisors (14788900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12513116 is a wasteful number, since it uses less digits than its factorization.

12513116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40649 (or 40647 counting only the distinct ones).

The product of its digits is 180, while the sum is 20.

The square root of 12513116 is about 3537.3883021235. The cubic root of 12513116 is about 232.1605854119.

Adding to 12513116 its reverse (61131521), we get a palindrome (73644637).

The spelling of 12513116 in words is "twelve million, five hundred thirteen thousand, one hundred sixteen".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 40627 81254 162508 284389 446897 568778 893794 1137556 1787588 3128279 6256558 12513116