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13290989 = 47594793
BaseRepresentation
bin110010101100…
…110111101101
3221000020210212
4302230313231
511400302424
61152512205
7220654145
oct62546755
927006725
1013290989
117558798
12454b665
1329a47ba
141a9d925
15127810e
hexcacded

13290989 has 8 divisors (see below), whose sum is σ = 13806720. Its totient is φ = 12785056.

The previous prime is 13290983. The next prime is 13290997. The reversal of 13290989 is 98909231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13290989 - 24 = 13290973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13290983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377 + ... + 5169.

It is an arithmetic number, because the mean of its divisors is an integer number (1725840).

Almost surely, 213290989 is an apocalyptic number.

It is an amenable number.

13290989 is a deficient number, since it is larger than the sum of its proper divisors (515731).

13290989 is an equidigital number, since it uses as much as digits as its factorization.

13290989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 13290989 is about 3645.6808691930. The cubic root of 13290989 is about 236.8749303008.

The spelling of 13290989 in words is "thirteen million, two hundred ninety thousand, nine hundred eighty-nine".

Divisors: 1 47 59 2773 4793 225271 282787 13290989