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12949133 = 31740849
BaseRepresentation
bin110001011001…
…011010001101
3220100212212112
4301121122031
511303333013
61141313405
7215031401
oct61313215
926325775
1012949133
11734496a
124405865
1328b5012
141a11101
15120bba8
hexc5968d

12949133 has 4 divisors (see below), whose sum is σ = 12990300. Its totient is φ = 12907968.

The previous prime is 12949117. The next prime is 12949147. The reversal of 12949133 is 33194921.

12949133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4169764 + 8779369 = 2042^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 12949133 - 24 = 12949117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12949133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12949163) 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, 20108 + ... + 20741.

It is an arithmetic number, because the mean of its divisors is an integer number (3247575).

Almost surely, 212949133 is an apocalyptic number.

It is an amenable number.

12949133 is a deficient number, since it is larger than the sum of its proper divisors (41167).

12949133 is an equidigital number, since it uses as much as digits as its factorization.

12949133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41166.

The product of its digits is 5832, while the sum is 32.

The square root of 12949133 is about 3598.4903779224. The cubic root of 12949133 is about 234.8263875396.

The spelling of 12949133 in words is "twelve million, nine hundred forty-nine thousand, one hundred thirty-three".

Divisors: 1 317 40849 12949133