Base | Representation |
---|---|
bin | 11010101011011… |
… | …10010011010001 |
3 | 120121010010210122 |
4 | 31111232103101 |
5 | 424243022411 |
6 | 34112440025 |
7 | 5355153464 |
oct | 1525562321 |
9 | 517103718 |
10 | 223798481 |
11 | 105368125 |
12 | 62b49015 |
13 | 3749a64a |
14 | 21a192db |
15 | 149aa9db |
hex | d56e4d1 |
223798481 has 4 divisors (see below), whose sum is σ = 231515700. Its totient is φ = 216081264.
The previous prime is 223798469. The next prime is 223798483. The reversal of 223798481 is 184897322.
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 139617856 + 84180625 = 11816^2 + 9175^2 .
It is a cyclic number.
It is not a de Polignac number, because 223798481 - 218 = 223536337 is a prime.
It is a super-2 number, since 2×2237984812 = 100171520195814722, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (223798483) 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, 3858566 + ... + 3858623.
It is an arithmetic number, because the mean of its divisors is an integer number (57878925).
Almost surely, 2223798481 is an apocalyptic number.
It is an amenable number.
223798481 is a deficient number, since it is larger than the sum of its proper divisors (7717219).
223798481 is an equidigital number, since it uses as much as digits as its factorization.
223798481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7717218.
The product of its digits is 193536, while the sum is 44.
The square root of 223798481 is about 14959.8957549844. The cubic root of 223798481 is about 607.1356175983.
The spelling of 223798481 in words is "two hundred twenty-three million, seven hundred ninety-eight thousand, four hundred eighty-one".
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