Base | Representation |
---|---|
bin | 111111011111001… |
… | …1111001110000100 |
3 | 12111110112221222010 |
4 | 1332332133032010 |
5 | 13330324410040 |
6 | 551215534220 |
7 | 103535223246 |
oct | 17676371604 |
9 | 5443487863 |
10 | 2130310020 |
11 | 9a35604a3 |
12 | 4b552a370 |
13 | 27c470c97 |
14 | 162cda096 |
15 | c7052e80 |
hex | 7ef9f384 |
2130310020 has 48 divisors (see below), whose sum is σ = 6278811840. Its totient is φ = 538183296.
The previous prime is 2130310019. The next prime is 2130310093. The reversal of 2130310020 is 200130312.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 2130309978 and 2130310005.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933207 + ... + 935486.
It is an arithmetic number, because the mean of its divisors is an integer number (130808580).
Almost surely, 22130310020 is an apocalyptic number.
2130310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2130310020 is an abundant number, since it is smaller than the sum of its proper divisors (4148501820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130310020 is a wasteful number, since it uses less digits than its factorization.
2130310020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1868724 (or 1868722 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 2130310020 is about 46155.2816046008. The cubic root of 2130310020 is about 1286.7107717826.
Adding to 2130310020 its reverse (200130312), we get a palindrome (2330440332).
The spelling of 2130310020 in words is "two billion, one hundred thirty million, three hundred ten thousand, twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.112 sec. • engine limits •