| Base | Representation |
|---|---|
| bin | 1111010101101… |
| … | …1100101000000 |
| 3 | 11111001201110210 |
| 4 | 3311123211000 |
| 5 | 112432310430 |
| 6 | 10214554120 |
| 7 | 1410603021 |
| oct | 365334500 |
| 9 | 144051423 |
| 10 | 64338240 |
| 11 | 333542aa |
| 12 | 19668940 |
| 13 | 10438785 |
| 14 | 878ac48 |
| 15 | 59ad2b0 |
| hex | 3d5b940 |
64338240 has 112 divisors (see below), whose sum is σ = 211409280. Its totient is φ = 16558080.
The previous prime is 64338221. The next prime is 64338247. The reversal of 64338240 is 4283346.
64338240 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 (30).
It is a junction number, because it is equal to n+sod(n) for n = 64338198 and 64338207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64338247) 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 15 ways as a sum of consecutive naturals, for example, 26685 + ... + 28995.
Almost surely, 264338240 is an apocalyptic number.
64338240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 64338240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105704640).
64338240 is an abundant number, since it is smaller than the sum of its proper divisors (147071040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64338240 is a wasteful number, since it uses less digits than its factorization.
64338240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2360 (or 2350 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 30.
The square root of 64338240 is about 8021.1121423404. The cubic root of 64338240 is about 400.7034289109.
It can be divided in two parts, 643 and 38240, that added together give a palindrome (38883).
The spelling of 64338240 in words is "sixty-four million, three hundred thirty-eight thousand, two hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •