| Base | Representation |
|---|---|
| bin | 1111010011110… |
| … | …0101010100000 |
| 3 | 11110211021210000 |
| 4 | 3310330222200 |
| 5 | 112414232431 |
| 6 | 10212140000 |
| 7 | 1406534610 |
| oct | 364745240 |
| 9 | 143737700 |
| 10 | 64211616 |
| 11 | 33278157 |
| 12 | 19607600 |
| 13 | 103c2c51 |
| 14 | 8756a40 |
| 15 | 59859e6 |
| hex | 3d3caa0 |
64211616 has 120 divisors (see below), whose sum is σ = 215883360. Its totient is φ = 18340992.
The previous prime is 64211611. The next prime is 64211627. The reversal of 64211616 is 61611246.
64211616 is a `hidden beast` number, since 6 + 42 + 1 + 1 + 616 = 666.
64211616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a nude number because it is divisible by every one of its digits.
It is a self number, because there is not a number n which added to its sum of digits gives 64211616.
It is not an unprimeable number, because it can be changed into a prime (64211611) 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 in 19 ways as a sum of consecutive naturals, for example, 16375 + ... + 19913.
It is an arithmetic number, because the mean of its divisors is an integer number (1799028).
Almost surely, 264211616 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 64211616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107941680).
64211616 is an abundant number, since it is smaller than the sum of its proper divisors (151671744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64211616 is a wasteful number, since it uses less digits than its factorization.
64211616 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3568 (or 3551 counting only the distinct ones).
The product of its digits is 1728, while the sum is 27.
The square root of 64211616 is about 8013.2150850954. The cubic root of 64211616 is about 400.4403816487.
The spelling of 64211616 in words is "sixty-four million, two hundred eleven thousand, six hundred sixteen".
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