Base | Representation |
---|---|
bin | 11001010011101… |
… | …11100110000101 |
3 | 112210111001212221 |
4 | 30221313212011 |
5 | 413322132323 |
6 | 33022212341 |
7 | 5155352614 |
oct | 1451674605 |
9 | 483431787 |
10 | 212302213 |
11 | a9925882 |
12 | 5b1240b1 |
13 | 34ca3a16 |
14 | 202a587b |
15 | 1398955d |
hex | ca77985 |
212302213 has 8 divisors (see below), whose sum is σ = 222356736. Its totient is φ = 202316400.
The previous prime is 212302201. The next prime is 212302241. The reversal of 212302213 is 312203212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 212302213 - 29 = 212301701 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212302513) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10798 + ... + 23263.
It is an arithmetic number, because the mean of its divisors is an integer number (27794592).
Almost surely, 2212302213 is an apocalyptic number.
212302213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
212302213 is a deficient number, since it is larger than the sum of its proper divisors (10054523).
212302213 is a wasteful number, since it uses less digits than its factorization.
212302213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34355.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 212302213 is about 14570.5941196644. The cubic root of 212302213 is about 596.5563969557.
Adding to 212302213 its reverse (312203212), we get a palindrome (524505425).
Subtracting 212302213 from its reverse (312203212), we obtain a palindrome (99900999).
The spelling of 212302213 in words is "two hundred twelve million, three hundred two thousand, two hundred thirteen".
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