Base | Representation |
---|---|
bin | 10111001111110… |
… | …010011000100001 |
3 | 1000011212210022101 |
4 | 113033302120201 |
5 | 1244320430442 |
6 | 102411210401 |
7 | 12444032335 |
oct | 2717623041 |
9 | 1004783271 |
10 | 390014497 |
11 | 190175734 |
12 | aa746a01 |
13 | 62a56512 |
14 | 39b257c5 |
15 | 2438ecb7 |
hex | 173f2621 |
390014497 has 2 divisors, whose sum is σ = 390014498. Its totient is φ = 390014496.
The previous prime is 390014491. The next prime is 390014543. The reversal of 390014497 is 794410093.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 281937681 + 108076816 = 16791^2 + 10396^2 .
It is an emirp because it is prime and its reverse (794410093) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 390014497 - 223 = 381625889 is a prime.
It is a super-2 number, since 2×3900144972 = 304222615740326018, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (390014491) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195007248 + 195007249.
It is an arithmetic number, because the mean of its divisors is an integer number (195007249).
Almost surely, 2390014497 is an apocalyptic number.
It is an amenable number.
390014497 is a deficient number, since it is larger than the sum of its proper divisors (1).
390014497 is an equidigital number, since it uses as much as digits as its factorization.
390014497 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 27216, while the sum is 37.
The square root of 390014497 is about 19748.7846967858. The cubic root of 390014497 is about 730.6234100431.
The spelling of 390014497 in words is "three hundred ninety million, fourteen thousand, four hundred ninety-seven".
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