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12648244 = 227451723
BaseRepresentation
bin110000001111…
…111100110100
3212210121010111
4300033330310
511214220434
61131032404
7212336230
oct60177464
925717114
1012648244
1171598a4
12429b704
13280b08b
1419735c0
15119c964
hexc0ff34

12648244 has 12 divisors (see below), whose sum is σ = 25296544. Its totient is φ = 5420664.

The previous prime is 12648239. The next prime is 12648247. The reversal of 12648244 is 44284621.

12648244 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648247) 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 3 ways as a sum of consecutive naturals, for example, 225834 + ... + 225889.

Almost surely, 212648244 is an apocalyptic number.

12648244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12648244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12648244 is a wasteful number, since it uses less digits than its factorization.

12648244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451734 (or 451732 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 12648244 is about 3556.4369810247. The cubic root of 12648244 is about 232.9932888094.

The spelling of 12648244 in words is "twelve million, six hundred forty-eight thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 451723 903446 1806892 3162061 6324122 12648244