Base | Representation |
---|---|
bin | 110011100001… |
… | …101000100101 |
3 | 221102020021022 |
4 | 303201220211 |
5 | 11424211414 |
6 | 1201300525 |
7 | 222544220 |
oct | 63415045 |
9 | 27366238 |
10 | 13507109 |
11 | 7696100 |
12 | 4634745 |
13 | 2a4bc95 |
14 | 1b185b7 |
15 | 12bc18e |
hex | ce1a25 |
13507109 has 24 divisors (see below), whose sum is σ = 17466624. Its totient is φ = 10216800.
The previous prime is 13507073. The next prime is 13507121. The reversal of 13507109 is 90170531.
It is not a de Polignac number, because 13507109 - 212 = 13503013 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13507139) 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 23 ways as a sum of consecutive naturals, for example, 31124 + ... + 31554.
It is an arithmetic number, because the mean of its divisors is an integer number (727776).
Almost surely, 213507109 is an apocalyptic number.
It is an amenable number.
13507109 is a deficient number, since it is larger than the sum of its proper divisors (3959515).
13507109 is a wasteful number, since it uses less digits than its factorization.
13507109 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 497 (or 486 counting only the distinct ones).
The product of its (nonzero) digits is 945, while the sum is 26.
The square root of 13507109 is about 3675.2018992159. The cubic root of 13507109 is about 238.1519461427.
The spelling of 13507109 in words is "thirteen million, five hundred seven thousand, one hundred nine".
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