Base | Representation |
---|---|
bin | 1110010101001… |
… | …10111000011100 |
3 | 22101012212111111 |
4 | 13022212320130 |
5 | 221234034322 |
6 | 15532431404 |
7 | 2656602106 |
oct | 712467034 |
9 | 271185444 |
10 | 120221212 |
11 | 61952a81 |
12 | 34318564 |
13 | 1bba3817 |
14 | 11d76576 |
15 | a84b177 |
hex | 72a6e1c |
120221212 has 12 divisors (see below), whose sum is σ = 222762960. Its totient is φ = 56574656.
The previous prime is 120221203. The next prime is 120221221. The reversal of 120221212 is 212122021.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (120221203) and next prime (120221221).
It is a junction number, because it is equal to n+sod(n) for n = 120221192 and 120221201.
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, 883912 + ... + 884047.
It is an arithmetic number, because the mean of its divisors is an integer number (18563580).
Almost surely, 2120221212 is an apocalyptic number.
It is an amenable number.
120221212 is a deficient number, since it is larger than the sum of its proper divisors (102541748).
120221212 is a wasteful number, since it uses less digits than its factorization.
120221212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1767980 (or 1767978 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 13.
The square root of 120221212 is about 10964.5434013460. The cubic root of 120221212 is about 493.5453153197.
Adding to 120221212 its reverse (212122021), we get a palindrome (332343233).
The spelling of 120221212 in words is "one hundred twenty million, two hundred twenty-one thousand, two hundred twelve".
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