Base | Representation |
---|---|
bin | 11111010111101000011010 |
3 | 120110210012010 |
4 | 133113220122 |
5 | 4101121013 |
6 | 452130350 |
7 | 126616341 |
oct | 37275032 |
9 | 16423163 |
10 | 8223258 |
11 | 470728a |
12 | 29069b6 |
13 | 191bc44 |
14 | 1140b58 |
15 | ac67c3 |
hex | 7d7a1a |
8223258 has 16 divisors (see below), whose sum is σ = 16488000. Its totient is φ = 2734176.
The previous prime is 8223253. The next prime is 8223289. The reversal of 8223258 is 8523228.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (8223251) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243 + ... + 4241.
It is an arithmetic number, because the mean of its divisors is an integer number (1030500).
Almost surely, 28223258 is an apocalyptic number.
8223258 is an abundant number, since it is smaller than the sum of its proper divisors (8264742).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8223258 is a wasteful number, since it uses less digits than its factorization.
8223258 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3461.
The product of its digits is 7680, while the sum is 30.
The square root of 8223258 is about 2867.6223600746. The cubic root of 8223258 is about 201.8434397780.
Subtracting from 8223258 its sum of digits (30), we obtain a palindrome (8223228).
The spelling of 8223258 in words is "eight million, two hundred twenty-three thousand, two hundred fifty-eight".
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