Base | Representation |
---|---|
bin | 100100011111011… |
… | …0101001010000100 |
3 | 10011022222111111010 |
4 | 1020332311022010 |
5 | 10001423231322 |
6 | 321255442220 |
7 | 42225325245 |
oct | 11076651204 |
9 | 3138874433 |
10 | 1224430212 |
11 | 5791825a5 |
12 | 2a2086370 |
13 | 166899225 |
14 | b888cccc |
15 | 7276420c |
hex | 48fb5284 |
1224430212 has 12 divisors (see below), whose sum is σ = 2857003856. Its totient is φ = 408143400.
The previous prime is 1224430201. The next prime is 1224430213. The reversal of 1224430212 is 2120344221.
It is a tau number, because it is divible by the number of its divisors (12).
It is not an unprimeable number, because it can be changed into a prime (1224430213) 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, 51017914 + ... + 51017937.
Almost surely, 21224430212 is an apocalyptic number.
1224430212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1224430212 is an abundant number, since it is smaller than the sum of its proper divisors (1632573644).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1224430212 is a wasteful number, since it uses less digits than its factorization.
1224430212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 102035858 (or 102035856 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 21.
The square root of 1224430212 is about 34991.8592246825. The cubic root of 1224430212 is about 1069.8215593198.
Adding to 1224430212 its reverse (2120344221), we get a palindrome (3344774433).
The spelling of 1224430212 in words is "one billion, two hundred twenty-four million, four hundred thirty thousand, two hundred twelve".
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