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12669885 = 33593851
BaseRepresentation
bin110000010101…
…001110111101
3212211200211000
4300111032331
511220414020
61131320513
7212456304
oct60251675
925750730
1012669885
117174088
1242b0139
132817b97
14197b43b
1511a4090
hexc153bd

12669885 has 16 divisors (see below), whose sum is σ = 22524480. Its totient is φ = 6757200.

The previous prime is 12669869. The next prime is 12669893. The reversal of 12669885 is 58896621.

12669885 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 12669885 - 24 = 12669869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12669885.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 46791 + ... + 47060.

It is an arithmetic number, because the mean of its divisors is an integer number (1407780).

Almost surely, 212669885 is an apocalyptic number.

12669885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12669885 is a deficient number, since it is larger than the sum of its proper divisors (9854595).

12669885 is an equidigital number, since it uses as much as digits as its factorization.

12669885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93865 (or 93859 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 12669885 is about 3559.4781920950. The cubic root of 12669885 is about 233.1260960400.

The spelling of 12669885 in words is "twelve million, six hundred sixty-nine thousand, eight hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 135 93851 281553 469255 844659 1407765 2533977 4223295 12669885