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12516894 = 23213149359
BaseRepresentation
bin101111101111…
…111000011110
3212112220221200
4233233320132
511201020034
61124140330
7211251255
oct57577036
925486850
1012516894
11707a145
1242376a6
132793360
14193b79c
151173a99
hexbefe1e

12516894 has 48 divisors (see below), whose sum is σ = 29484000. Its totient is φ = 3814848.

The previous prime is 12516887. The next prime is 12516929. The reversal of 12516894 is 49861521.

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 23 ways as a sum of consecutive naturals, for example, 34687 + ... + 35045.

It is an arithmetic number, because the mean of its divisors is an integer number (614250).

Almost surely, 212516894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12516894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14742000).

12516894 is an abundant number, since it is smaller than the sum of its proper divisors (16967106).

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

12516894 is a wasteful number, since it uses less digits than its factorization.

12516894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 526 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12516894 is about 3537.9222716165. The cubic root of 12516894 is about 232.1839479497.

The spelling of 12516894 in words is "twelve million, five hundred sixteen thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 149 234 298 359 447 718 894 1077 1341 1937 2154 2682 3231 3874 4667 5811 6462 9334 11622 14001 17433 28002 34866 42003 53491 84006 106982 160473 320946 481419 695383 962838 1390766 2086149 4172298 6258447 12516894