Base | Representation |
---|---|
bin | 1110010101001… |
… | …00101011110101 |
3 | 22101012102011012 |
4 | 13022210223311 |
5 | 221233242323 |
6 | 15532322005 |
7 | 2656533632 |
oct | 712445365 |
9 | 271172135 |
10 | 120212213 |
11 | 61947240 |
12 | 34313305 |
13 | 1bb9c6b4 |
14 | 11d73189 |
15 | a848678 |
hex | 72a4af5 |
120212213 has 4 divisors (see below), whose sum is σ = 131140608. Its totient is φ = 109283820.
The previous prime is 120212171. The next prime is 120212243. The reversal of 120212213 is 312212021.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 120212213 - 28 = 120211957 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120212243) 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, 5464181 + ... + 5464202.
It is an arithmetic number, because the mean of its divisors is an integer number (32785152).
Almost surely, 2120212213 is an apocalyptic number.
It is an amenable number.
120212213 is a deficient number, since it is larger than the sum of its proper divisors (10928395).
120212213 is a wasteful number, since it uses less digits than its factorization.
120212213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10928394.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 120212213 is about 10964.1330254608. The cubic root of 120212213 is about 493.5330004515.
Adding to 120212213 its reverse (312212021), we get a palindrome (432424234).
The spelling of 120212213 in words is "one hundred twenty million, two hundred twelve thousand, two hundred thirteen".
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