Base | Representation |
---|---|
bin | 1000011100011000101100 |
3 | 11011110020112 |
4 | 20130120230 |
5 | 1031312140 |
6 | 115235152 |
7 | 24546056 |
oct | 10343054 |
9 | 4143215 |
10 | 2213420 |
11 | 1281a80 |
12 | 8a8ab8 |
13 | 5c6621 |
14 | 4188d6 |
15 | 2dac65 |
hex | 21c62c |
2213420 has 24 divisors (see below), whose sum is σ = 5071248. Its totient is φ = 804800.
The previous prime is 2213413. The next prime is 2213423. The reversal of 2213420 is 243122.
It is a junction number, because it is equal to n+sod(n) for n = 2213395 and 2213404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2213423) 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, 4811 + ... + 5250.
It is an arithmetic number, because the mean of its divisors is an integer number (211302).
22213420 is an apocalyptic number.
2213420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2213420 is an abundant number, since it is smaller than the sum of its proper divisors (2857828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2213420 is a wasteful number, since it uses less digits than its factorization.
2213420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10081 (or 10079 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 14.
The square root of 2213420 is about 1487.7567005394. The cubic root of 2213420 is about 130.3230623719.
Adding to 2213420 its reverse (243122), we get a palindrome (2456542).
The spelling of 2213420 in words is "two million, two hundred thirteen thousand, four hundred twenty".
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