Base | Representation |
---|---|
bin | 10111101010101… |
… | …000100101100111 |
3 | 1000200010100022101 |
4 | 113222220211213 |
5 | 1303121133023 |
6 | 103222112531 |
7 | 12560613526 |
oct | 2752504547 |
9 | 1020110271 |
10 | 397052263 |
11 | 194142273 |
12 | b0b7b747 |
13 | 6434b98a |
14 | 3aa384bd |
15 | 24cd01ad |
hex | 17aa8967 |
397052263 has 2 divisors, whose sum is σ = 397052264. Its totient is φ = 397052262.
The previous prime is 397052261. The next prime is 397052269. The reversal of 397052263 is 362250793.
It is a weak prime.
It is an emirp because it is prime and its reverse (362250793) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 397052263 - 21 = 397052261 is a prime.
Together with 397052261, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (397052261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198526131 + 198526132.
It is an arithmetic number, because the mean of its divisors is an integer number (198526132).
Almost surely, 2397052263 is an apocalyptic number.
397052263 is a deficient number, since it is larger than the sum of its proper divisors (1).
397052263 is an equidigital number, since it uses as much as digits as its factorization.
397052263 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 68040, while the sum is 37.
The square root of 397052263 is about 19926.1703044012. The cubic root of 397052263 is about 734.9919094548.
The spelling of 397052263 in words is "three hundred ninety-seven million, fifty-two thousand, two hundred sixty-three".
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