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12313116 = 22322111621
BaseRepresentation
bin101110111110…
…001000011100
3212011120102100
4232332020130
511123004431
61115525100
7206442204
oct56761034
925146370
1012313116
116a50032
124159790
13272168a
1418c7404
1511334e6
hexbbe21c

12313116 has 36 divisors (see below), whose sum is σ = 31291624. Its totient is φ = 4082400.

The previous prime is 12313111. The next prime is 12313141. The reversal of 12313116 is 61131321.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×123131162 = 303225651258912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313111) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6786 + ... + 8406.

Almost surely, 212313116 is an apocalyptic number.

It is an amenable number.

12313116 is an abundant number, since it is smaller than the sum of its proper divisors (18978508).

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

12313116 is a wasteful number, since it uses less digits than its factorization.

12313116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842 (or 1837 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 12313116 is about 3509.0049871723. The cubic root of 12313116 is about 230.9170444807.

Adding to 12313116 its reverse (61131321), we get a palindrome (73444437).

The spelling of 12313116 in words is "twelve million, three hundred thirteen thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 36 211 422 633 844 1266 1621 1899 2532 3242 3798 4863 6484 7596 9726 14589 19452 29178 58356 342031 684062 1026093 1368124 2052186 3078279 4104372 6156558 12313116