Base | Representation |
---|---|
bin | 1111010010000… |
… | …0010000110001 |
3 | 11110121101012022 |
4 | 3310200100301 |
5 | 112402022111 |
6 | 10205441225 |
7 | 1405541465 |
oct | 364402061 |
9 | 143541168 |
10 | 64095281 |
11 | 331a8808 |
12 | 19570215 |
13 | 10382003 |
14 | 87264a5 |
15 | 59612db |
hex | 3d20431 |
64095281 has 2 divisors, whose sum is σ = 64095282. Its totient is φ = 64095280.
The previous prime is 64095277. The next prime is 64095301. The reversal of 64095281 is 18259046.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 46117681 + 17977600 = 6791^2 + 4240^2 .
It is a cyclic number.
It is not a de Polignac number, because 64095281 - 22 = 64095277 is a prime.
It is a super-2 number, since 2×640952812 = 8216410092937922, which contains 22 as substring.
It is equal to p3790376 and since 64095281 and 3790376 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (64095221) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32047640 + 32047641.
It is an arithmetic number, because the mean of its divisors is an integer number (32047641).
Almost surely, 264095281 is an apocalyptic number.
It is an amenable number.
64095281 is a deficient number, since it is larger than the sum of its proper divisors (1).
64095281 is an equidigital number, since it uses as much as digits as its factorization.
64095281 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 17280, while the sum is 35.
The square root of 64095281 is about 8005.9528477252. The cubic root of 64095281 is about 400.1984036570.
The spelling of 64095281 in words is "sixty-four million, ninety-five thousand, two hundred eighty-one".
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