Base | Representation |
---|---|
bin | 1111010011111… |
… | …1011100100010 |
3 | 11110211212102000 |
4 | 3310333130202 |
5 | 112420114020 |
6 | 10212304430 |
7 | 1406613045 |
oct | 364773442 |
9 | 143755360 |
10 | 64223010 |
11 | 33285775 |
12 | 19612116 |
13 | 103c81a7 |
14 | 875ac5c |
15 | 5989090 |
hex | 3d3f722 |
64223010 has 64 divisors (see below), whose sum is σ = 176808960. Its totient is φ = 16571520.
The previous prime is 64222999. The next prime is 64223017. The reversal of 64223010 is 1032246.
It is a happy number.
64223010 is a `hidden beast` number, since 642 + 23 + 0 + 1 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64223017) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4534 + ... + 12206.
It is an arithmetic number, because the mean of its divisors is an integer number (2762640).
Almost surely, 264223010 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 64223010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88404480).
64223010 is an abundant number, since it is smaller than the sum of its proper divisors (112585950).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64223010 is a wasteful number, since it uses less digits than its factorization.
64223010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7720 (or 7714 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 64223010 is about 8013.9260041505. The cubic root of 64223010 is about 400.4640655663.
Adding to 64223010 its reverse (1032246), we get a palindrome (65255256).
The spelling of 64223010 in words is "sixty-four million, two hundred twenty-three thousand, ten".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •