Base | Representation |
---|---|
bin | 1111010101010… |
… | …0101101011001 |
3 | 11111000021212202 |
4 | 3311110231121 |
5 | 112430410410 |
6 | 10214215545 |
7 | 1410425006 |
oct | 365245531 |
9 | 144007782 |
10 | 64310105 |
11 | 33335152 |
12 | 196545b5 |
13 | 10428a22 |
14 | 87808ad |
15 | 59a4ca5 |
hex | 3d54b59 |
64310105 has 4 divisors (see below), whose sum is σ = 77172132. Its totient is φ = 51448080.
The previous prime is 64310101. The next prime is 64310111. The reversal of 64310105 is 50101346.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 37797904 + 26512201 = 6148^2 + 5149^2 .
It is not a de Polignac number, because 64310105 - 22 = 64310101 is a prime.
It is a super-2 number, since 2×643101052 = 8271579210222050, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (64310101) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6431006 + ... + 6431015.
It is an arithmetic number, because the mean of its divisors is an integer number (19293033).
Almost surely, 264310105 is an apocalyptic number.
It is an amenable number.
64310105 is a deficient number, since it is larger than the sum of its proper divisors (12862027).
64310105 is a wasteful number, since it uses less digits than its factorization.
64310105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12862026.
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 64310105 is about 8019.3581413976. The cubic root of 64310105 is about 400.6450114249.
The spelling of 64310105 in words is "sixty-four million, three hundred ten thousand, one hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •