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13248307 = 28147147
BaseRepresentation
bin110010100010…
…011100110011
3220221002021001
4302202130303
511342421212
61151542431
7220415542
oct62423463
926832231
1013248307
117529716
12452aa17
13298b247
141a8c159
15126a657
hexca2733

13248307 has 4 divisors (see below), whose sum is σ = 13295736. Its totient is φ = 13200880.

The previous prime is 13248293. The next prime is 13248317. The reversal of 13248307 is 70384231.

13248307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13248307 - 215 = 13215539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13248317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23293 + ... + 23854.

It is an arithmetic number, because the mean of its divisors is an integer number (3323934).

Almost surely, 213248307 is an apocalyptic number.

13248307 is a deficient number, since it is larger than the sum of its proper divisors (47429).

13248307 is an equidigital number, since it uses as much as digits as its factorization.

13248307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47428.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 13248307 is about 3639.8223857765. The cubic root of 13248307 is about 236.6210957244.

The spelling of 13248307 in words is "thirteen million, two hundred forty-eight thousand, three hundred seven".

Divisors: 1 281 47147 13248307