Base | Representation |
---|---|
bin | 10010011111000… |
… | …011011000100101 |
3 | 210121120020200012 |
4 | 102133003120211 |
5 | 1113343131323 |
6 | 50435100005 |
7 | 10454030501 |
oct | 2237033045 |
9 | 717506605 |
10 | 310130213 |
11 | 14a073468 |
12 | 87a41605 |
13 | 4c336a03 |
14 | 2d28d301 |
15 | 1c360678 |
hex | 127c3625 |
310130213 has 2 divisors, whose sum is σ = 310130214. Its totient is φ = 310130212.
The previous prime is 310130173. The next prime is 310130237. The reversal of 310130213 is 312031013.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 291965569 + 18164644 = 17087^2 + 4262^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-310130213 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (310130113) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155065106 + 155065107.
It is an arithmetic number, because the mean of its divisors is an integer number (155065107).
Almost surely, 2310130213 is an apocalyptic number.
It is an amenable number.
310130213 is a deficient number, since it is larger than the sum of its proper divisors (1).
310130213 is an equidigital number, since it uses as much as digits as its factorization.
310130213 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 310130213 is about 17610.5142741488. The cubic root of 310130213 is about 676.8846919989.
Adding to 310130213 its reverse (312031013), we get a palindrome (622161226).
The spelling of 310130213 in words is "three hundred ten million, one hundred thirty thousand, two hundred thirteen".
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