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13287927 = 310343003
BaseRepresentation
bin110010101100…
…000111110111
3221000002121110
4302230013313
511400203202
61152450103
7220642212
oct62540767
927002543
1013287927
117556464
124549933
1329a32a3
141a9c779
15127726c
hexcac1f7

13287927 has 8 divisors (see below), whose sum is σ = 17889664. Its totient is φ = 8772408.

The previous prime is 13287917. The next prime is 13287941. The reversal of 13287927 is 72978231.

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

It is not a de Polignac number, because 13287927 - 211 = 13285879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13287917) 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, 21193 + ... + 21810.

It is an arithmetic number, because the mean of its divisors is an integer number (2236208).

Almost surely, 213287927 is an apocalyptic number.

13287927 is a deficient number, since it is larger than the sum of its proper divisors (4601737).

13287927 is a wasteful number, since it uses less digits than its factorization.

13287927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43109.

The product of its digits is 42336, while the sum is 39.

The square root of 13287927 is about 3645.2608960128. The cubic root of 13287927 is about 236.8567383577.

The spelling of 13287927 in words is "thirteen million, two hundred eighty-seven thousand, nine hundred twenty-seven".

Divisors: 1 3 103 309 43003 129009 4429309 13287927