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12831416 = 2313123379
BaseRepresentation
bin110000111100…
…101010111000
3220010220101122
4300330222320
511241101131
61135004412
7214031243
oct60745270
926126348
1012831416
117274484
124369708
132873570
1419c025a
1511d6d7b
hexc3cab8

12831416 has 16 divisors (see below), whose sum is σ = 25909800. Its totient is φ = 5922144.

The previous prime is 12831407. The next prime is 12831419. The reversal of 12831416 is 61413821.

12831416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12831419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61586 + ... + 61793.

Almost surely, 212831416 is an apocalyptic number.

It is an amenable number.

12831416 is an abundant number, since it is smaller than the sum of its proper divisors (13078384).

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

12831416 is a wasteful number, since it uses less digits than its factorization.

12831416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123398 (or 123394 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 12831416 is about 3582.0965927792. The cubic root of 12831416 is about 234.1126396609.

The spelling of 12831416 in words is "twelve million, eight hundred thirty-one thousand, four hundred sixteen".

Divisors: 1 2 4 8 13 26 52 104 123379 246758 493516 987032 1603927 3207854 6415708 12831416