Base | Representation |
---|---|
bin | 1111100110110… |
… | …00001101010001 |
3 | 100010022212101211 |
4 | 13303120031101 |
5 | 232003042014 |
6 | 20553500121 |
7 | 3146464630 |
oct | 763301521 |
9 | 303285354 |
10 | 130909009 |
11 | 67992970 |
12 | 37a11641 |
13 | 2117646a |
14 | 13559517 |
15 | b75ccc4 |
hex | 7cd8351 |
130909009 has 16 divisors (see below), whose sum is σ = 163593216. Its totient is φ = 101768400.
The previous prime is 130909007. The next prime is 130909033. The reversal of 130909009 is 900909031.
It is a cyclic number.
It is not a de Polignac number, because 130909009 - 21 = 130909007 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130909007) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35754 + ... + 39244.
It is an arithmetic number, because the mean of its divisors is an integer number (10224576).
Almost surely, 2130909009 is an apocalyptic number.
It is an amenable number.
130909009 is a deficient number, since it is larger than the sum of its proper divisors (32684207).
130909009 is a wasteful number, since it uses less digits than its factorization.
130909009 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3996.
The product of its (nonzero) digits is 2187, while the sum is 31.
The square root of 130909009 is about 11441.5474914891. The cubic root of 130909009 is about 507.7576925824.
The spelling of 130909009 in words is "one hundred thirty million, nine hundred nine thousand, nine".
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