Base | Representation |
---|---|
bin | 1111010001111… |
… | …0101001011101 |
3 | 11110121001010102 |
4 | 3310132221131 |
5 | 112401314134 |
6 | 10205350445 |
7 | 1405513301 |
oct | 364365135 |
9 | 143531112 |
10 | 64088669 |
11 | 331a3847 |
12 | 19568425 |
13 | 1037bcb8 |
14 | 8723d01 |
15 | 595e37e |
hex | 3d1ea5d |
64088669 has 2 divisors, whose sum is σ = 64088670. Its totient is φ = 64088668.
The previous prime is 64088611. The next prime is 64088677. The reversal of 64088669 is 96688046.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 44063044 + 20025625 = 6638^2 + 4475^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-64088669 is a prime.
It is a super-2 number, since 2×640886692 = 8214714988383122, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (64088069) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32044334 + 32044335.
It is an arithmetic number, because the mean of its divisors is an integer number (32044335).
Almost surely, 264088669 is an apocalyptic number.
It is an amenable number.
64088669 is a deficient number, since it is larger than the sum of its proper divisors (1).
64088669 is an equidigital number, since it uses as much as digits as its factorization.
64088669 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 497664, while the sum is 47.
The square root of 64088669 is about 8005.5398943482. The cubic root of 64088669 is about 400.1846418387.
The spelling of 64088669 in words is "sixty-four million, eighty-eight thousand, six hundred sixty-nine".
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