Base | Representation |
---|---|
bin | 10000000001101… |
… | …101101000000001 |
3 | 200201221202011111 |
4 | 100001231220001 |
5 | 1022313300411 |
6 | 42403043321 |
7 | 6443323525 |
oct | 2001555001 |
9 | 621852144 |
10 | 268884481 |
11 | 128861988 |
12 | 76070541 |
13 | 43925158 |
14 | 279d3d85 |
15 | 18914721 |
hex | 1006da01 |
268884481 has 4 divisors (see below), whose sum is σ = 269323732. Its totient is φ = 268445232.
The previous prime is 268884463. The next prime is 268884533. The reversal of 268884481 is 184488862.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 115347600 + 153536881 = 10740^2 + 12391^2 .
It is a cyclic number.
It is not a de Polignac number, because 268884481 - 217 = 268753409 is a prime.
It is a super-2 number, since 2×2688844812 = 144597728245278722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (268888481) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218706 + ... + 219931.
It is an arithmetic number, because the mean of its divisors is an integer number (67330933).
Almost surely, 2268884481 is an apocalyptic number.
It is an amenable number.
268884481 is a deficient number, since it is larger than the sum of its proper divisors (439251).
268884481 is an equidigital number, since it uses as much as digits as its factorization.
268884481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 439250.
The product of its digits is 786432, while the sum is 49.
The square root of 268884481 is about 16397.6974298223. The cubic root of 268884481 is about 645.4390624715.
The spelling of 268884481 in words is "two hundred sixty-eight million, eight hundred eighty-four thousand, four hundred eighty-one".
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