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13381315 = 56074409
BaseRepresentation
bin110011000010…
…111011000011
3221011211201021
4303002323003
511411200230
61154450311
7221511403
oct63027303
927154637
1013381315
11760a642
124593997
132a0694c
141ac4803
151294c7a
hexcc2ec3

13381315 has 8 divisors (see below), whose sum is σ = 16087680. Its totient is φ = 10684992.

The previous prime is 13381289. The next prime is 13381327. The reversal of 13381315 is 51318331.

13381315 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 cyclic number.

It is not a de Polignac number, because 13381315 - 213 = 13373123 is a prime.

It is a super-2 number, since 2×133813152 = 358119182258450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13381315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831 + ... + 5239.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 213381315 is an apocalyptic number.

13381315 is a deficient number, since it is larger than the sum of its proper divisors (2706365).

13381315 is an equidigital number, since it uses as much as digits as its factorization.

13381315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021.

The product of its digits is 1080, while the sum is 25.

The square root of 13381315 is about 3658.0479767220. The cubic root of 13381315 is about 237.4103225604.

Adding to 13381315 its reverse (51318331), we get a palindrome (64699646).

The spelling of 13381315 in words is "thirteen million, three hundred eighty-one thousand, three hundred fifteen".

Divisors: 1 5 607 3035 4409 22045 2676263 13381315