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12288488 = 234393499
BaseRepresentation
bin101110111000…
…000111101000
3212010022122012
4232320013220
511121212423
61115215052
7206310332
oct56700750
925108565
1012288488
116a33583
124147488
1327133c4
1418bc452
15112b078
hexbb81e8

12288488 has 16 divisors (see below), whose sum is σ = 23100000. Its totient is φ = 6128496.

The previous prime is 12288487. The next prime is 12288499. The reversal of 12288488 is 88488221.

12288488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122884882 = 302013874652288, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12288487) 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, 1763 + ... + 5261.

It is an arithmetic number, because the mean of its divisors is an integer number (1443750).

Almost surely, 212288488 is an apocalyptic number.

It is an amenable number.

12288488 is a deficient number, since it is larger than the sum of its proper divisors (10811512).

12288488 is a wasteful number, since it uses less digits than its factorization.

12288488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944 (or 3940 counting only the distinct ones).

The product of its digits is 65536, while the sum is 41.

The square root of 12288488 is about 3505.4939737503. The cubic root of 12288488 is about 230.7629859735.

The spelling of 12288488 in words is "twelve million, two hundred eighty-eight thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 439 878 1756 3499 3512 6998 13996 27992 1536061 3072122 6144244 12288488