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13048775 = 521730703
BaseRepresentation
bin110001110001…
…101111000111
3220112221112222
4301301233013
511320030100
61143402555
7215625035
oct61615707
926487488
1013048775
117402813
12445345b
13291b48c
141a39555
15122b485
hexc71bc7

13048775 has 12 divisors (see below), whose sum is σ = 17132832. Its totient is φ = 9824640.

The previous prime is 13048771. The next prime is 13048781. The reversal of 13048775 is 57784031.

It is not a de Polignac number, because 13048775 - 22 = 13048771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13048771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14927 + ... + 15776.

It is an arithmetic number, because the mean of its divisors is an integer number (1427736).

Almost surely, 213048775 is an apocalyptic number.

13048775 is a deficient number, since it is larger than the sum of its proper divisors (4084057).

13048775 is a wasteful number, since it uses less digits than its factorization.

13048775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30730 (or 30725 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 13048775 is about 3612.3088184705. The cubic root of 13048775 is about 235.4271693263.

The spelling of 13048775 in words is "thirteen million, forty-eight thousand, seven hundred seventy-five".

Divisors: 1 5 17 25 85 425 30703 153515 521951 767575 2609755 13048775