Base | Representation |
---|---|
bin | 110010000101… |
… | …110000010111 |
3 | 220201010001000 |
4 | 302011300113 |
5 | 11330141100 |
6 | 1145234343 |
7 | 216416100 |
oct | 62056027 |
9 | 26633030 |
10 | 13130775 |
11 | 7459389 |
12 | 44929b3 |
13 | 29498b8 |
14 | 1a5b3a7 |
15 | 1245900 |
hex | c85c17 |
13130775 has 72 divisors (see below), whose sum is σ = 28130640. Its totient is φ = 5987520.
The previous prime is 13130773. The next prime is 13130779. The reversal of 13130775 is 57703131.
It is not a de Polignac number, because 13130775 - 21 = 13130773 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13130773) by changing a digit.
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 71 ways as a sum of consecutive naturals, for example, 32877 + ... + 33273.
Almost surely, 213130775 is an apocalyptic number.
13130775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
13130775 is an abundant number, since it is smaller than the sum of its proper divisors (14999865).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13130775 is a wasteful number, since it uses less digits than its factorization.
13130775 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 430 (or 412 counting only the distinct ones).
The product of its (nonzero) digits is 2205, while the sum is 27.
The square root of 13130775 is about 3623.6411246149. The cubic root of 13130775 is about 235.9192903654.
The spelling of 13130775 in words is "thirteen million, one hundred thirty thousand, seven hundred seventy-five".
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