| Base | Representation |
|---|---|
| bin | 11100101000111… |
| … | …01010010000000 |
| 3 | 121202001122121000 |
| 4 | 32110131102000 |
| 5 | 443000300330 |
| 6 | 35501132000 |
| 7 | 5645016234 |
| oct | 1624352200 |
| 9 | 552048530 |
| 10 | 240243840 |
| 11 | 11367a831 |
| 12 | 6855a000 |
| 13 | 3aa07b25 |
| 14 | 23c9a5c4 |
| 15 | 16158560 |
| hex | e51d480 |
240243840 has 128 divisors (see below), whose sum is σ = 850924800. Its totient is φ = 64060416.
The previous prime is 240243827. The next prime is 240243851. The reversal of 240243840 is 48342042.
It is a happy number.
240243840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10329 + ... + 24231.
It is an arithmetic number, because the mean of its divisors is an integer number (6647850).
Almost surely, 2240243840 is an apocalyptic number.
240243840 is a gapful number since it is divisible by the number (20) 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 240243840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425462400).
240243840 is an abundant number, since it is smaller than the sum of its proper divisors (610680960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
240243840 is a wasteful number, since it uses less digits than its factorization.
240243840 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13931 (or 13913 counting only the distinct ones).
The product of its (nonzero) digits is 6144, while the sum is 27.
The square root of 240243840 is about 15499.8012890488. The cubic root of 240243840 is about 621.6568931692.
Adding to 240243840 its reverse (48342042), we get a palindrome (288585882).
The spelling of 240243840 in words is "two hundred forty million, two hundred forty-three thousand, eight hundred forty".
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