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12388884 = 2231032407
BaseRepresentation
bin101111010000…
…101000010100
3212022102100120
4233100220110
511132421014
61121311540
7210206124
oct57205024
925272316
1012388884
116aa1a52
1241955b0
13274a001
141906c84
15114aba9
hexbd0a14

12388884 has 12 divisors (see below), whose sum is σ = 28907424. Its totient is φ = 4129624.

The previous prime is 12388877. The next prime is 12388897. The reversal of 12388884 is 48888321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516192 + ... + 516215.

It is an arithmetic number, because the mean of its divisors is an integer number (2408952).

Almost surely, 212388884 is an apocalyptic number.

It is an amenable number.

12388884 is an abundant number, since it is smaller than the sum of its proper divisors (16518540).

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

12388884 is a wasteful number, since it uses less digits than its factorization.

12388884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032414 (or 1032412 counting only the distinct ones).

The product of its digits is 98304, while the sum is 42.

The square root of 12388884 is about 3519.7846525036. The cubic root of 12388884 is about 231.3897208719.

The spelling of 12388884 in words is "twelve million, three hundred eighty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 1032407 2064814 3097221 4129628 6194442 12388884