Base | Representation |
---|---|
bin | 1111010001110… |
… | …0101001010101 |
3 | 11110120121212201 |
4 | 3310130221111 |
5 | 112401033334 |
6 | 10205244501 |
7 | 1405450345 |
oct | 364345125 |
9 | 143517781 |
10 | 64080469 |
11 | 33198672 |
12 | 19563731 |
13 | 1037834b |
14 | 8720d25 |
15 | 595bc14 |
hex | 3d1ca55 |
64080469 has 2 divisors, whose sum is σ = 64080470. Its totient is φ = 64080468.
The previous prime is 64080451. The next prime is 64080473. The reversal of 64080469 is 96408046.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 63202500 + 877969 = 7950^2 + 937^2 .
It is a cyclic number.
It is not a de Polignac number, because 64080469 - 29 = 64079957 is a prime.
It is a super-2 number, since 2×640804692 = 8212613014519922, which contains 22 as substring.
It is equal to p3789550 and since 64080469 and 3789550 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (64080409) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32040234 + 32040235.
It is an arithmetic number, because the mean of its divisors is an integer number (32040235).
Almost surely, 264080469 is an apocalyptic number.
It is an amenable number.
64080469 is a deficient number, since it is larger than the sum of its proper divisors (1).
64080469 is an equidigital number, since it uses as much as digits as its factorization.
64080469 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 41472, while the sum is 37.
The square root of 64080469 is about 8005.0277326190. The cubic root of 64080469 is about 400.1675735380.
The spelling of 64080469 in words is "sixty-four million, eighty thousand, four hundred sixty-nine".
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