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13388485 = 5112291063
BaseRepresentation
bin110011000100…
…101011000101
3221012012112211
4303010223011
511411412420
61154543421
7221541325
oct63045305
927165484
1013388485
117614a70
124597b71
132a09ca6
141ac7285
151296e5a
hexcc4ac5

13388485 has 16 divisors (see below), whose sum is σ = 17619840. Its totient is φ = 9685440.

The previous prime is 13388471. The next prime is 13388491. The reversal of 13388485 is 58488331.

13388485 = T221 + T222 + ... + T449.

It is not a de Polignac number, because 13388485 - 27 = 13388357 is a prime.

It is a super-4 number, since 4×133884854 (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12064 + ... + 13126.

It is an arithmetic number, because the mean of its divisors is an integer number (1101240).

Almost surely, 213388485 is an apocalyptic number.

It is an amenable number.

13388485 is a deficient number, since it is larger than the sum of its proper divisors (4231355).

13388485 is a wasteful number, since it uses less digits than its factorization.

13388485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its digits is 92160, while the sum is 40.

The square root of 13388485 is about 3659.0278763628. The cubic root of 13388485 is about 237.4527181962.

The spelling of 13388485 in words is "thirteen million, three hundred eighty-eight thousand, four hundred eighty-five".

Divisors: 1 5 11 55 229 1063 1145 2519 5315 11693 12595 58465 243427 1217135 2677697 13388485