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12286992 = 243435953
BaseRepresentation
bin101110110111…
…110000010000
3212010020120210
4232313300100
511121140432
61115204120
7206303064
oct56676020
925106523
1012286992
116a32443
124146640
132712813
1418bbaa4
15112a8cc
hexbb7c10

12286992 has 40 divisors (see below), whose sum is σ = 32485024. Its totient is φ = 3999744.

The previous prime is 12286969. The next prime is 12286999. The reversal of 12286992 is 29968221.

12286992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12286992.

It is not an unprimeable number, because it can be changed into a prime (12286999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913 + ... + 5040.

Almost surely, 212286992 is an apocalyptic number.

12286992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12286992 is an abundant number, since it is smaller than the sum of its proper divisors (20198032).

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

12286992 is a wasteful number, since it uses less digits than its factorization.

12286992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6007 (or 6001 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 12286992 is about 3505.2805879130. The cubic root of 12286992 is about 230.7536212348.

The spelling of 12286992 in words is "twelve million, two hundred eighty-six thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 43 48 86 129 172 258 344 516 688 1032 2064 5953 11906 17859 23812 35718 47624 71436 95248 142872 255979 285744 511958 767937 1023916 1535874 2047832 3071748 4095664 6143496 12286992