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12604869 = 331094283
BaseRepresentation
bin110000000101…
…010111000101
3212201101122000
4300011113011
511211323434
61130055513
7212065614
oct60052705
925641560
1012604869
11712a252
12427a599
1327c4404
14196187b
15118eb99
hexc055c5

12604869 has 16 divisors (see below), whose sum is σ = 18849600. Its totient is φ = 8324208.

The previous prime is 12604861. The next prime is 12604873. The reversal of 12604869 is 96840621.

12604869 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12604869 - 23 = 12604861 is a prime.

It is a super-2 number, since 2×126048692 = 317765445014322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12604861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802 + ... + 5084.

It is an arithmetic number, because the mean of its divisors is an integer number (1178100).

Almost surely, 212604869 is an apocalyptic number.

It is an amenable number.

12604869 is a deficient number, since it is larger than the sum of its proper divisors (6244731).

12604869 is a wasteful number, since it uses less digits than its factorization.

12604869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401 (or 4395 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 12604869 is about 3550.3336462930. Note that the first 3 decimals coincide. The cubic root of 12604869 is about 232.7266468332.

The spelling of 12604869 in words is "twelve million, six hundred four thousand, eight hundred sixty-nine".

Divisors: 1 3 9 27 109 327 981 2943 4283 12849 38547 115641 466847 1400541 4201623 12604869