Base | Representation |
---|---|
bin | 1011001000111001… |
… | …1100010010000101 |
3 | 21201101110100200000 |
4 | 2302032130102011 |
5 | 22110433132214 |
6 | 1212412511513 |
7 | 134045455035 |
oct | 26216342205 |
9 | 7641410600 |
10 | 2990130309 |
11 | 12a493a181 |
12 | 6b547b599 |
13 | 38863a09a |
14 | 2051978c5 |
15 | 127794809 |
hex | b239c485 |
2990130309 has 24 divisors (see below), whose sum is σ = 4563572832. Its totient is φ = 1955800080.
The previous prime is 2990130307. The next prime is 2990130343. The reversal of 2990130309 is 9030310992.
It is not a de Polignac number, because 2990130309 - 21 = 2990130307 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2990130307) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103207 + ... + 128964.
It is an arithmetic number, because the mean of its divisors is an integer number (190148868).
Almost surely, 22990130309 is an apocalyptic number.
It is an amenable number.
2990130309 is a deficient number, since it is larger than the sum of its proper divisors (1573442523).
2990130309 is an equidigital number, since it uses as much as digits as its factorization.
2990130309 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 232239 (or 232227 counting only the distinct ones).
The product of its (nonzero) digits is 13122, while the sum is 36.
The square root of 2990130309 is about 54682.0839855249. The cubic root of 2990130309 is about 1440.6662151659. Note that the first 3 decimals are identical.
The spelling of 2990130309 in words is "two billion, nine hundred ninety million, one hundred thirty thousand, three hundred nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •