Base | Representation |
---|---|
bin | 1110010101001… |
… | …11010111110001 |
3 | 22101012222020202 |
4 | 13022213113301 |
5 | 221234120332 |
6 | 15532444545 |
7 | 2656611002 |
oct | 712472761 |
9 | 271188222 |
10 | 120223217 |
11 | 61954534 |
12 | 34319755 |
13 | 1bba46ca |
14 | 11d771a9 |
15 | a84ba62 |
hex | 72a75f1 |
120223217 has 2 divisors, whose sum is σ = 120223218. Its totient is φ = 120223216.
The previous prime is 120223157. The next prime is 120223219. The reversal of 120223217 is 712322021.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 70040161 + 50183056 = 8369^2 + 7084^2 .
It is an emirp because it is prime and its reverse (712322021) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 120223217 - 218 = 119961073 is a prime.
Together with 120223219, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (120223219) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60111608 + 60111609.
It is an arithmetic number, because the mean of its divisors is an integer number (60111609).
Almost surely, 2120223217 is an apocalyptic number.
It is an amenable number.
120223217 is a deficient number, since it is larger than the sum of its proper divisors (1).
120223217 is an equidigital number, since it uses as much as digits as its factorization.
120223217 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 336, while the sum is 20.
The square root of 120223217 is about 10964.6348320407. The cubic root of 120223217 is about 493.5480590198.
Adding to 120223217 its reverse (712322021), we get a palindrome (832545238).
The spelling of 120223217 in words is "one hundred twenty million, two hundred twenty-three thousand, two hundred seventeen".
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