Base | Representation |
---|---|
bin | 10010101101010… |
… | …100100110000011 |
3 | 210212121021200121 |
4 | 102231110212003 |
5 | 1120322330343 |
6 | 51051201111 |
7 | 10530566665 |
oct | 2255244603 |
9 | 725537617 |
10 | 313870723 |
11 | 1511987a1 |
12 | 89146197 |
13 | 5004642a |
14 | 2d984535 |
15 | 1c84daed |
hex | 12b54983 |
313870723 has 2 divisors, whose sum is σ = 313870724. Its totient is φ = 313870722.
The previous prime is 313870663. The next prime is 313870751. The reversal of 313870723 is 327078313.
It is a strong prime.
It is an emirp because it is prime and its reverse (327078313) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 313870723 - 221 = 311773571 is a prime.
It is not a weakly prime, because it can be changed into another prime (313870793) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156935361 + 156935362.
It is an arithmetic number, because the mean of its divisors is an integer number (156935362).
Almost surely, 2313870723 is an apocalyptic number.
313870723 is a deficient number, since it is larger than the sum of its proper divisors (1).
313870723 is an equidigital number, since it uses as much as digits as its factorization.
313870723 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 21168, while the sum is 34.
The square root of 313870723 is about 17716.3970095502. The cubic root of 313870723 is about 679.5951475628.
The spelling of 313870723 in words is "three hundred thirteen million, eight hundred seventy thousand, seven hundred twenty-three".
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