Base | Representation |
---|---|
bin | 1000101001110011111111 |
3 | 11021020200101 |
4 | 20221303333 |
5 | 1040042130 |
6 | 120341531 |
7 | 25165312 |
oct | 10516377 |
9 | 4236611 |
10 | 2268415 |
11 | 130a326 |
12 | 9148a7 |
13 | 615676 |
14 | 430979 |
15 | 2ec1ca |
hex | 229cff |
2268415 has 4 divisors (see below), whose sum is σ = 2722104. Its totient is φ = 1814728.
The previous prime is 2268403. The next prime is 2268437. The reversal of 2268415 is 5148622.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5148622 = 2 ⋅2574311.
It is a cyclic number.
It is not a de Polignac number, because 2268415 - 215 = 2235647 is a prime.
It is a super-2 number, since 2×22684152 = 10291413224450, which contains 22 as substring.
It is a Duffinian number.
2268415 is a lucky number.
It is a plaindrome in base 16.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226837 + ... + 226846.
It is an arithmetic number, because the mean of its divisors is an integer number (680526).
22268415 is an apocalyptic number.
2268415 is a deficient number, since it is larger than the sum of its proper divisors (453689).
2268415 is an equidigital number, since it uses as much as digits as its factorization.
2268415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 453688.
The product of its digits is 3840, while the sum is 28.
The square root of 2268415 is about 1506.1258247570. The cubic root of 2268415 is about 131.3935873783.
The spelling of 2268415 in words is "two million, two hundred sixty-eight thousand, four hundred fifteen".
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