Base | Representation |
---|---|
bin | 1111010001100… |
… | …0101110000011 |
3 | 11110112210211002 |
4 | 3310120232003 |
5 | 112400030022 |
6 | 10205042215 |
7 | 1405352432 |
oct | 364305603 |
9 | 143483732 |
10 | 64064387 |
11 | 33187582 |
12 | 1955636b |
13 | 10370c2a |
14 | 8719119 |
15 | 5957092 |
hex | 3d18b83 |
64064387 has 2 divisors, whose sum is σ = 64064388. Its totient is φ = 64064386.
The previous prime is 64064369. The next prime is 64064389. The reversal of 64064387 is 78346046.
It is a happy number.
64064387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 64064387 - 26 = 64064323 is a prime.
Together with 64064389, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 64064387.
It is not a weakly prime, because it can be changed into another prime (64064389) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32032193 + 32032194.
It is an arithmetic number, because the mean of its divisors is an integer number (32032194).
Almost surely, 264064387 is an apocalyptic number.
64064387 is a deficient number, since it is larger than the sum of its proper divisors (1).
64064387 is an equidigital number, since it uses as much as digits as its factorization.
64064387 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 96768, while the sum is 38.
The square root of 64064387 is about 8004.0231758785. The cubic root of 64064387 is about 400.1340946249.
The spelling of 64064387 in words is "sixty-four million, sixty-four thousand, three hundred eighty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •