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12669435 = 3252312241
BaseRepresentation
bin110000010101…
…000111111011
3212211200012100
4300111013323
511220410220
61131314443
7212455062
oct60250773
925750170
1012669435
117173809
1242aba23
13281790c
14197b1d9
1511a3d90
hexc151fb

12669435 has 24 divisors (see below), whose sum is σ = 22917024. Its totient is φ = 6462720.

The previous prime is 12669431. The next prime is 12669439. The reversal of 12669435 is 53496621.

It is a happy number.

12669435 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12669431) and next prime (12669439).

It is not a de Polignac number, because 12669435 - 22 = 12669431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12669435.

It is not an unprimeable number, because it can be changed into a prime (12669431) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5086 + ... + 7155.

It is an arithmetic number, because the mean of its divisors is an integer number (954876).

Almost surely, 212669435 is an apocalyptic number.

12669435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12669435 is a deficient number, since it is larger than the sum of its proper divisors (10247589).

12669435 is a wasteful number, since it uses less digits than its factorization.

12669435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12275 (or 12272 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 12669435 is about 3559.4149800213. The cubic root of 12669435 is about 233.1233360048.

It can be divided in two parts, 1266 and 9435, that added together give a palindrome (10701).

The spelling of 12669435 in words is "twelve million, six hundred sixty-nine thousand, four hundred thirty-five".

Divisors: 1 3 5 9 15 23 45 69 115 207 345 1035 12241 36723 61205 110169 183615 281543 550845 844629 1407715 2533887 4223145 12669435