Base | Representation |
---|---|
bin | 10010101010000… |
… | …010111111111111 |
3 | 210210222200001022 |
4 | 102222002333333 |
5 | 1120112342343 |
6 | 51020534355 |
7 | 10520363036 |
oct | 2252027777 |
9 | 723880038 |
10 | 313012223 |
11 | 150761797 |
12 | 889b13bb |
13 | 4cb05744 |
14 | 2d7dd71d |
15 | 1c72e568 |
hex | 12a82fff |
313012223 has 4 divisors (see below), whose sum is σ = 318918168. Its totient is φ = 307106280.
The previous prime is 313012181. The next prime is 313012229. The reversal of 313012223 is 322210313.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322210313 = 1163 ⋅277051.
It is a cyclic number.
It is not a de Polignac number, because 313012223 - 210 = 313011199 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (313012229) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2952893 + ... + 2952998.
It is an arithmetic number, because the mean of its divisors is an integer number (79729542).
Almost surely, 2313012223 is an apocalyptic number.
313012223 is a deficient number, since it is larger than the sum of its proper divisors (5905945).
313012223 is an equidigital number, since it uses as much as digits as its factorization.
313012223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5905944.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 313012223 is about 17692.1514519857. The cubic root of 313012223 is about 678.9749716576.
Adding to 313012223 its reverse (322210313), we get a palindrome (635222536).
The spelling of 313012223 in words is "three hundred thirteen million, twelve thousand, two hundred twenty-three".
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