Base | Representation |
---|---|
bin | 1111100000010… |
… | …11111010010001 |
3 | 100001202100112020 |
4 | 13300023322101 |
5 | 231244302314 |
6 | 20523522053 |
7 | 3136411161 |
oct | 760137221 |
9 | 301670466 |
10 | 130072209 |
11 | 674711a3 |
12 | 37689329 |
13 | 20c42607 |
14 | 133bc5a1 |
15 | b644da9 |
hex | 7c0be91 |
130072209 has 8 divisors (see below), whose sum is σ = 173717760. Its totient is φ = 86570736.
The previous prime is 130072193. The next prime is 130072231. The reversal of 130072209 is 902270031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 130072209 - 24 = 130072193 is a prime.
It is not an unprimeable number, because it can be changed into a prime (130072289) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33894 + ... + 37535.
It is an arithmetic number, because the mean of its divisors is an integer number (21714720).
Almost surely, 2130072209 is an apocalyptic number.
It is an amenable number.
130072209 is a deficient number, since it is larger than the sum of its proper divisors (43645551).
130072209 is an equidigital number, since it uses as much as digits as its factorization.
130072209 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72039.
The product of its (nonzero) digits is 756, while the sum is 24.
The square root of 130072209 is about 11404.9203855178. The cubic root of 130072209 is about 506.6734784307.
The spelling of 130072209 in words is "one hundred thirty million, seventy-two thousand, two hundred nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •