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13255085 = 52651017
BaseRepresentation
bin110010100100…
…000110101101
3220221102120002
4302210012231
511343130320
61152034045
7220444364
oct62440655
926842502
1013255085
117533818
124532925
13299135c
141a907db
15126c675
hexca41ad

13255085 has 4 divisors (see below), whose sum is σ = 15906108. Its totient is φ = 10604064.

The previous prime is 13255069. The next prime is 13255091. The reversal of 13255085 is 58055231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58055231 = 134465787.

It can be written as a sum of positive squares in 2 ways, for example, as 8916196 + 4338889 = 2986^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 13255085 - 24 = 13255069 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 1325504 + ... + 1325513.

It is an arithmetic number, because the mean of its divisors is an integer number (3976527).

Almost surely, 213255085 is an apocalyptic number.

It is an amenable number.

13255085 is a deficient number, since it is larger than the sum of its proper divisors (2651023).

13255085 is an equidigital number, since it uses as much as digits as its factorization.

13255085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651022.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 13255085 is about 3640.7533561064. The cubic root of 13255085 is about 236.6614416180.

The spelling of 13255085 in words is "thirteen million, two hundred fifty-five thousand, eighty-five".

Divisors: 1 5 2651017 13255085