Base | Representation |
---|---|
bin | 10010110001101… |
… | …011011110010111 |
3 | 210221202022121201 |
4 | 102301223132113 |
5 | 1121120404030 |
6 | 51131453331 |
7 | 10543365202 |
oct | 2261533627 |
9 | 727668551 |
10 | 315013015 |
11 | 1518a8a39 |
12 | 895b7247 |
13 | 50356345 |
14 | 2dba0939 |
15 | 1c9c72ca |
hex | 12c6b797 |
315013015 has 4 divisors (see below), whose sum is σ = 378015624. Its totient is φ = 252010408.
The previous prime is 315013001. The next prime is 315013063. The reversal of 315013015 is 510310513.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 510310513 = 103 ⋅4954471.
It is a cyclic number.
It is not a de Polignac number, because 315013015 - 25 = 315012983 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 315012983 and 315013001.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31501297 + ... + 31501306.
It is an arithmetic number, because the mean of its divisors is an integer number (94503906).
Almost surely, 2315013015 is an apocalyptic number.
315013015 is a deficient number, since it is larger than the sum of its proper divisors (63002609).
315013015 is an equidigital number, since it uses as much as digits as its factorization.
315013015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63002608.
The product of its (nonzero) digits is 225, while the sum is 19.
The square root of 315013015 is about 17748.6060015991. The cubic root of 315013015 is about 680.4185823931.
Adding to 315013015 its reverse (510310513), we get a palindrome (825323528).
The spelling of 315013015 in words is "three hundred fifteen million, thirteen thousand, fifteen".
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