Base | Representation |
---|---|
bin | 101110110111… |
… | …010100100111 |
3 | 212010011011021 |
4 | 232313110213 |
5 | 11121111343 |
6 | 1115152011 |
7 | 206264656 |
oct | 56672447 |
9 | 25104137 |
10 | 12285223 |
11 | 6a31085 |
12 | 4145607 |
13 | 2711a82 |
14 | 18bb19d |
15 | 112a0ed |
hex | bb7527 |
12285223 has 4 divisors (see below), whose sum is σ = 12307608. Its totient is φ = 12262840.
The previous prime is 12285193. The next prime is 12285239. The reversal of 12285223 is 32258221.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32258221 = 167 ⋅193163.
It is a cyclic number.
It is not a de Polignac number, because 12285223 - 221 = 10188071 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12285253) 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, 10348 + ... + 11473.
It is an arithmetic number, because the mean of its divisors is an integer number (3076902).
Almost surely, 212285223 is an apocalyptic number.
12285223 is a deficient number, since it is larger than the sum of its proper divisors (22385).
12285223 is an equidigital number, since it uses as much as digits as its factorization.
12285223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22384.
The product of its digits is 1920, while the sum is 25.
The square root of 12285223 is about 3505.0282452500. The cubic root of 12285223 is about 230.7425465756.
The spelling of 12285223 in words is "twelve million, two hundred eighty-five thousand, two hundred twenty-three".
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