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13245885 = 325294353
BaseRepresentation
bin110010100001…
…110110111101
3220220221221100
4302201312331
511342332020
61151523313
7220405512
oct62416675
926827840
1013245885
117527914
124529539
13298a103
141a8b309
151269a90
hexca1dbd

13245885 has 12 divisors (see below), whose sum is σ = 22959612. Its totient is φ = 7064448.

The previous prime is 13245877. The next prime is 13245899. The reversal of 13245885 is 58854231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1996569 + 11249316 = 1413^2 + 3354^2 .

It is not a de Polignac number, because 13245885 - 23 = 13245877 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147132 + ... + 147221.

It is an arithmetic number, because the mean of its divisors is an integer number (1913301).

Almost surely, 213245885 is an apocalyptic number.

13245885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13245885 is a deficient number, since it is larger than the sum of its proper divisors (9713727).

13245885 is a wasteful number, since it uses less digits than its factorization.

13245885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294364 (or 294361 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 13245885 is about 3639.4896620268. The cubic root of 13245885 is about 236.6066754864.

The spelling of 13245885 in words is "thirteen million, two hundred forty-five thousand, eight hundred eighty-five".

Divisors: 1 3 5 9 15 45 294353 883059 1471765 2649177 4415295 13245885