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12969885 = 354718397
BaseRepresentation
bin110001011110…
…011110011101
3220101221100010
4301132132131
511310014020
61141553433
7215146035
oct61363635
926357303
1012969885
117359515
124415879
1328c15b6
141a188c5
151212de0
hexc5e79d

12969885 has 16 divisors (see below), whose sum is σ = 21194496. Its totient is φ = 6769728.

The previous prime is 12969871. The next prime is 12969893. The reversal of 12969885 is 58896921.

It is a happy number.

It is not a de Polignac number, because 12969885 - 26 = 12969821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8494 + ... + 9903.

It is an arithmetic number, because the mean of its divisors is an integer number (1324656).

Almost surely, 212969885 is an apocalyptic number.

12969885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12969885 is a deficient number, since it is larger than the sum of its proper divisors (8224611).

12969885 is a wasteful number, since it uses less digits than its factorization.

12969885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18452.

The product of its digits is 311040, while the sum is 48.

The square root of 12969885 is about 3601.3726549748. The cubic root of 12969885 is about 234.9517631491.

The spelling of 12969885 in words is "twelve million, nine hundred sixty-nine thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 47 141 235 705 18397 55191 91985 275955 864659 2593977 4323295 12969885