Base | Representation |
---|---|
bin | 10000000001101… |
… | …110010001000100 |
3 | 200201221212202210 |
4 | 100001232101010 |
5 | 1022313341413 |
6 | 42403103420 |
7 | 6443334300 |
oct | 2001562104 |
9 | 621855683 |
10 | 268887108 |
11 | 128863956 |
12 | 76071b70 |
13 | 439263c9 |
14 | 279d4d00 |
15 | 189153c3 |
hex | 1006e444 |
268887108 has 72 divisors (see below), whose sum is σ = 732219264. Its totient is φ = 76574400.
The previous prime is 268887083. The next prime is 268887109. The reversal of 268887108 is 801788862.
It is not an unprimeable number, because it can be changed into a prime (268887109) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252898 + ... + 253958.
It is an arithmetic number, because the mean of its divisors is an integer number (10169712).
Almost surely, 2268887108 is an apocalyptic number.
268887108 is a gapful number since it is divisible by the number (28) 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 268887108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366109632).
268887108 is an abundant number, since it is smaller than the sum of its proper divisors (463332156).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
268887108 is a wasteful number, since it uses less digits than its factorization.
268887108 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1513 (or 1504 counting only the distinct ones).
The product of its (nonzero) digits is 344064, while the sum is 48.
The square root of 268887108 is about 16397.7775323365. Note that the first 3 decimals coincide. The cubic root of 268887108 is about 645.4411644434.
The spelling of 268887108 in words is "two hundred sixty-eight million, eight hundred eighty-seven thousand, one hundred eight".
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