Base | Representation |
---|---|
bin | 10010101011011… |
… | …100110101110111 |
3 | 210211200100211122 |
4 | 102223130311313 |
5 | 1120211131330 |
6 | 51032454155 |
7 | 10523454641 |
oct | 2253346567 |
9 | 724610748 |
10 | 313380215 |
11 | 150993215 |
12 | 88b4a35b |
13 | 4cc040a5 |
14 | 2d897891 |
15 | 1c7a35e5 |
hex | 12adcd77 |
313380215 has 4 divisors (see below), whose sum is σ = 376056264. Its totient is φ = 250704168.
The previous prime is 313380181. The next prime is 313380229. The reversal of 313380215 is 512083313.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512083313 = 7 ⋅73154759.
It is a cyclic number.
It is not a de Polignac number, because 313380215 - 226 = 246271351 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31338017 + ... + 31338026.
It is an arithmetic number, because the mean of its divisors is an integer number (94014066).
Almost surely, 2313380215 is an apocalyptic number.
313380215 is a deficient number, since it is larger than the sum of its proper divisors (62676049).
313380215 is an equidigital number, since it uses as much as digits as its factorization.
313380215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62676048.
The product of its (nonzero) digits is 2160, while the sum is 26.
The square root of 313380215 is about 17702.5482628914. The cubic root of 313380215 is about 679.2409458365.
The spelling of 313380215 in words is "three hundred thirteen million, three hundred eighty thousand, two hundred fifteen".
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