| Base | Representation |
|---|---|
| bin | 11111111110011… |
| … | …01011010010000 |
| 3 | 200200201101222021 |
| 4 | 33333031122100 |
| 5 | 1022131300430 |
| 6 | 42341021224 |
| 7 | 6434621350 |
| oct | 1777153220 |
| 9 | 620641867 |
| 10 | 268228240 |
| 11 | 128453935 |
| 12 | 759b4814 |
| 13 | 43755547 |
| 14 | 278a2b60 |
| 15 | 1883507a |
| hex | ffcd690 |
268228240 has 80 divisors (see below), whose sum is σ = 714954240. Its totient is φ = 91676160.
The previous prime is 268228237. The next prime is 268228243. The reversal of 268228240 is 42822862.
It is an interprime number because it is at equal distance from previous prime (268228237) and next prime (268228243).
It is a tau number, because it is divible by the number of its divisors (80).
It is a junction number, because it is equal to n+sod(n) for n = 268228196 and 268228205.
It is not an unprimeable number, because it can be changed into a prime (268228243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257641 + ... + 258679.
It is an arithmetic number, because the mean of its divisors is an integer number (8936928).
Almost surely, 2268228240 is an apocalyptic number.
268228240 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 268228240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357477120).
268228240 is an abundant number, since it is smaller than the sum of its proper divisors (446726000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
268228240 is a wasteful number, since it uses less digits than its factorization.
268228240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1520 (or 1514 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 34.
The square root of 268228240 is about 16377.6750486753. The cubic root of 268228240 is about 644.9135472935.
The spelling of 268228240 in words is "two hundred sixty-eight million, two hundred twenty-eight thousand, two hundred forty".
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