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13320886 = 231214853
BaseRepresentation
bin110010110100…
…001010110110
3221001202211011
4302310022312
511402232021
61153302434
7221140255
oct62641266
927052734
1013320886
1175791a7
124564a1a
1329b52a7
141aaa79c
151281de1
hexcb42b6

13320886 has 8 divisors (see below), whose sum is σ = 20625984. Its totient is φ = 6445560.

The previous prime is 13320883. The next prime is 13320893. The reversal of 13320886 is 68802331.

13320886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320883) 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, 107365 + ... + 107488.

It is an arithmetic number, because the mean of its divisors is an integer number (2578248).

Almost surely, 213320886 is an apocalyptic number.

13320886 is a deficient number, since it is larger than the sum of its proper divisors (7305098).

13320886 is a wasteful number, since it uses less digits than its factorization.

13320886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214886.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 13320886 is about 3649.7788974128. The cubic root of 13320886 is about 237.0524075976.

The spelling of 13320886 in words is "thirteen million, three hundred twenty thousand, eight hundred eighty-six".

Divisors: 1 2 31 62 214853 429706 6660443 13320886