Base | Representation |
---|---|
bin | 1111100010001… |
… | …01011001000001 |
3 | 100002012022111020 |
4 | 13301011121001 |
5 | 231324321044 |
6 | 20532540053 |
7 | 3141411453 |
oct | 761053101 |
9 | 302168436 |
10 | 130307649 |
11 | 6761207a |
12 | 37781629 |
13 | 20cc5824 |
14 | 134402d3 |
15 | b68ea19 |
hex | 7c45641 |
130307649 has 16 divisors (see below), whose sum is σ = 177168384. Its totient is φ = 85173200.
The previous prime is 130307623. The next prime is 130307657. The reversal of 130307649 is 946703031.
It is a cyclic number.
It is not a de Polignac number, because 130307649 - 28 = 130307393 is a prime.
It is not an unprimeable number, because it can be changed into a prime (130307699) 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, 39082 + ... + 42284.
It is an arithmetic number, because the mean of its divisors is an integer number (11073024).
Almost surely, 2130307649 is an apocalyptic number.
It is an amenable number.
130307649 is a deficient number, since it is larger than the sum of its proper divisors (46860735).
130307649 is a wasteful number, since it uses less digits than its factorization.
130307649 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3468.
The product of its (nonzero) digits is 13608, while the sum is 33.
The square root of 130307649 is about 11415.2375796564. The cubic root of 130307649 is about 506.9789992429.
The spelling of 130307649 in words is "one hundred thirty million, three hundred seven thousand, six hundred forty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •