Base | Representation |
---|---|
bin | 1000011100000110010101 |
3 | 11011101122000 |
4 | 20130012111 |
5 | 1031242440 |
6 | 115225513 |
7 | 24542460 |
oct | 10340625 |
9 | 4141560 |
10 | 2212245 |
11 | 1281102 |
12 | 8a8299 |
13 | 5c5c29 |
14 | 4182d7 |
15 | 2da730 |
hex | 21c195 |
2212245 has 32 divisors (see below), whose sum is σ = 4496640. Its totient is φ = 1010880.
The previous prime is 2212241. The next prime is 2212247. The reversal of 2212245 is 5422122.
It is not a de Polignac number, because 2212245 - 22 = 2212241 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2212241) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226 + ... + 2115.
It is an arithmetic number, because the mean of its divisors is an integer number (140520).
22212245 is an apocalyptic number.
It is an amenable number.
2212245 is an abundant number, since it is smaller than the sum of its proper divisors (2284395).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2212245 is a wasteful number, since it uses less digits than its factorization.
2212245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2362 (or 2356 counting only the distinct ones).
The product of its digits is 320, while the sum is 18.
The square root of 2212245 is about 1487.3617582821. The cubic root of 2212245 is about 130.2999975066.
Adding to 2212245 its reverse (5422122), we get a palindrome (7634367).
The spelling of 2212245 in words is "two million, two hundred twelve thousand, two hundred forty-five".
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