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13389441 = 313734703
BaseRepresentation
bin110011000100…
…111010000001
3221012020212020
4303010322001
511411430231
61154552053
7221544162
oct63047201
927166766
1013389441
11761575a
124598629
132a0a560
141ac7769
151297396
hexcc4e81

13389441 has 16 divisors (see below), whose sum is σ = 19493376. Its totient is φ = 8125056.

The previous prime is 13389437. The next prime is 13389457. The reversal of 13389441 is 14498331.

It is not a de Polignac number, because 13389441 - 22 = 13389437 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13389461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496 + ... + 5198.

It is an arithmetic number, because the mean of its divisors is an integer number (1218336).

Almost surely, 213389441 is an apocalyptic number.

It is an amenable number.

13389441 is a deficient number, since it is larger than the sum of its proper divisors (6103935).

13389441 is a wasteful number, since it uses less digits than its factorization.

13389441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792.

The product of its digits is 10368, while the sum is 33.

The square root of 13389441 is about 3659.1585098216. The cubic root of 13389441 is about 237.4583698039.

The spelling of 13389441 in words is "thirteen million, three hundred eighty-nine thousand, four hundred forty-one".

Divisors: 1 3 13 39 73 219 949 2847 4703 14109 61139 183417 343319 1029957 4463147 13389441