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12648012 = 2231381077
BaseRepresentation
bin110000001111…
…111001001100
3212210120210220
4300033321030
511214214022
61131031340
7212335446
oct60177114
925716726
1012648012
117159703
12429b550
13280ac40
141973496
15119c85c
hexc0fe4c

12648012 has 24 divisors (see below), whose sum is σ = 31782576. Its totient is φ = 3891648.

The previous prime is 12648001. The next prime is 12648019. The reversal of 12648012 is 21084621.

12648012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12648019) 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, 40383 + ... + 40694.

It is an arithmetic number, because the mean of its divisors is an integer number (1324274).

Almost surely, 212648012 is an apocalyptic number.

12648012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12648012 is an abundant number, since it is smaller than the sum of its proper divisors (19134564).

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

12648012 is a wasteful number, since it uses less digits than its factorization.

12648012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81097 (or 81095 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12648012 is about 3556.4043639609. The cubic root of 12648012 is about 232.9918642434.

The spelling of 12648012 in words is "twelve million, six hundred forty-eight thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 81077 162154 243231 324308 486462 972924 1054001 2108002 3162003 4216004 6324006 12648012