Base | Representation |
---|---|
bin | 1000100111000101000111 |
3 | 11020200022212 |
4 | 20213011013 |
5 | 1034212343 |
6 | 120214035 |
7 | 25120553 |
oct | 10470507 |
9 | 4220285 |
10 | 2257223 |
11 | 1301981 |
12 | 90a31b |
13 | 610547 |
14 | 42a863 |
15 | 2e8c18 |
hex | 227147 |
2257223 has 4 divisors (see below), whose sum is σ = 2261760. Its totient is φ = 2252688.
The previous prime is 2257207. The next prime is 2257237. The reversal of 2257223 is 3227522.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3227522 = 2 ⋅1613761.
It is a cyclic number.
It is not a de Polignac number, because 2257223 - 24 = 2257207 is a prime.
It is a d-powerful number, because it can be written as 24 + 214 + 57 + 7 + 216 + 221 + 3 .
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2250223) 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, 1415 + ... + 2552.
It is an arithmetic number, because the mean of its divisors is an integer number (565440).
22257223 is an apocalyptic number.
2257223 is a deficient number, since it is larger than the sum of its proper divisors (4537).
2257223 is an equidigital number, since it uses as much as digits as its factorization.
2257223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4536.
The product of its digits is 1680, while the sum is 23.
The square root of 2257223 is about 1502.4057374757. The cubic root of 2257223 is about 131.1771393034.
Subtracting 2257223 from its reverse (3227522), we obtain a cube (970299 = 993).
The spelling of 2257223 in words is "two million, two hundred fifty-seven thousand, two hundred twenty-three".
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