Base | Representation |
---|---|
bin | 100101010010111110010 |
3 | 2022002110002 |
4 | 10222113302 |
5 | 303102010 |
6 | 42110002 |
7 | 13250030 |
oct | 4522762 |
9 | 2262402 |
10 | 1222130 |
11 | 765228 |
12 | 4ab302 |
13 | 33a370 |
14 | 23b550 |
15 | 1921a5 |
hex | 12a5f2 |
1222130 has 64 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 359424.
The previous prime is 1222129. The next prime is 1222157. The reversal of 1222130 is 312221.
It is a happy number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15431 + ... + 15509.
It is an arithmetic number, because the mean of its divisors is an integer number (45360).
21222130 is an apocalyptic number.
1222130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a pronic number, being equal to 1105×1106.
1222130 is an abundant number, since it is smaller than the sum of its proper divisors (1680910).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222130 is a wasteful number, since it uses less digits than its factorization.
1222130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 123.
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 1222130 is about 1105.4998869290. The cubic root of 1222130 is about 106.9151217873.
Adding to 1222130 its reverse (312221), we get a palindrome (1534351).
Subtracting from 1222130 its reverse (312221), we obtain a palindrome (909909).
The spelling of 1222130 in words is "one million, two hundred twenty-two thousand, one hundred thirty".
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