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13287214 = 26643607
BaseRepresentation
bin110010101011…
…111100101110
3221000001122001
4302223330232
511400142324
61152442514
7220640143
oct62537456
927001561
1013287214
117555976
12454943a
1329a2b75
141a9c3ca
151276e44
hexcabf2e

13287214 has 4 divisors (see below), whose sum is σ = 19930824. Its totient is φ = 6643606.

The previous prime is 13287179. The next prime is 13287223. The reversal of 13287214 is 41278231.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3321802 + ... + 3321805.

It is an arithmetic number, because the mean of its divisors is an integer number (4982706).

Almost surely, 213287214 is an apocalyptic number.

13287214 is a deficient number, since it is larger than the sum of its proper divisors (6643610).

13287214 is an equidigital number, since it uses as much as digits as its factorization.

13287214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643609.

The product of its digits is 2688, while the sum is 28.

The square root of 13287214 is about 3645.1630964883. The cubic root of 13287214 is about 236.8525018837.

The spelling of 13287214 in words is "thirteen million, two hundred eighty-seven thousand, two hundred fourteen".

Divisors: 1 2 6643607 13287214