Base | Representation |
---|---|
bin | 10010101011010… |
… | …000110101010001 |
3 | 210211120212100210 |
4 | 102223100311101 |
5 | 1120203043100 |
6 | 51031434333 |
7 | 10523161350 |
oct | 2253206521 |
9 | 724525323 |
10 | 313331025 |
11 | 15095a267 |
12 | 88b259a9 |
13 | 4cbb7897 |
14 | 2d883997 |
15 | 1c793c50 |
hex | 12ad0d51 |
313331025 has 24 divisors (see below), whose sum is σ = 592047424. Its totient is φ = 143236800.
The previous prime is 313331003. The next prime is 313331041. The reversal of 313331025 is 520133313.
It is not a de Polignac number, because 313331025 - 210 = 313330001 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 313330992 and 313331010.
It is an unprimeable number.
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 in 23 ways as a sum of consecutive naturals, for example, 297886 + ... + 298935.
Almost surely, 2313331025 is an apocalyptic number.
313331025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
313331025 is a deficient number, since it is larger than the sum of its proper divisors (278716399).
313331025 is a wasteful number, since it uses less digits than its factorization.
313331025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 596841 (or 596836 counting only the distinct ones).
The product of its (nonzero) digits is 810, while the sum is 21.
The square root of 313331025 is about 17701.1588603684. The cubic root of 313331025 is about 679.2054047601.
Adding to 313331025 its reverse (520133313), we get a palindrome (833464338).
The spelling of 313331025 in words is "three hundred thirteen million, three hundred thirty-one thousand, twenty-five".
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