Search a number
-
+
12665933 = 71809419
BaseRepresentation
bin110000010100…
…010001001101
3212211111101122
4300110101031
511220302213
61131250325
7212441630
oct60242115
925744348
1012665933
117171115
1242a99a5
132816147
141979c17
1511a2d08
hexc1444d

12665933 has 4 divisors (see below), whose sum is σ = 14475360. Its totient is φ = 10856508.

The previous prime is 12665929. The next prime is 12665941. The reversal of 12665933 is 33956621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12665933 - 22 = 12665929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12665893 and 12665902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904703 + ... + 904716.

It is an arithmetic number, because the mean of its divisors is an integer number (3618840).

Almost surely, 212665933 is an apocalyptic number.

It is an amenable number.

12665933 is a deficient number, since it is larger than the sum of its proper divisors (1809427).

12665933 is an equidigital number, since it uses as much as digits as its factorization.

12665933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809426.

The product of its digits is 29160, while the sum is 35.

The square root of 12665933 is about 3558.9230112493. The cubic root of 12665933 is about 233.1018545640.

The spelling of 12665933 in words is "twelve million, six hundred sixty-five thousand, nine hundred thirty-three".

Divisors: 1 7 1809419 12665933