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13389886 = 27279209
BaseRepresentation
bin110011000101…
…000000111110
3221012021110201
4303011000332
511411434021
61154554114
7221545366
oct63050076
927167421
1013389886
117616024
12459893a
132a0a813
141ac79a6
151297591
hexcc503e

13389886 has 8 divisors (see below), whose sum is σ = 20114640. Its totient is φ = 6685008.

The previous prime is 13389881. The next prime is 13389907. The reversal of 13389886 is 68898331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13389881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3151 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (2514330).

Almost surely, 213389886 is an apocalyptic number.

13389886 is a deficient number, since it is larger than the sum of its proper divisors (6724754).

13389886 is an equidigital number, since it uses as much as digits as its factorization.

13389886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9938.

The product of its digits is 248832, while the sum is 46.

The square root of 13389886 is about 3659.2193156464. The cubic root of 13389886 is about 237.4610004292.

The spelling of 13389886 in words is "thirteen million, three hundred eighty-nine thousand, eight hundred eighty-six".

Divisors: 1 2 727 1454 9209 18418 6694943 13389886