Base | Representation |
---|---|
bin | 11001011100001… |
… | …10100101101101 |
3 | 112212120110111202 |
4 | 30232012211231 |
5 | 414113142310 |
6 | 33102055245 |
7 | 5200655006 |
oct | 1456064555 |
9 | 485513452 |
10 | 213412205 |
11 | aa513826 |
12 | 5b57a525 |
13 | 352a2016 |
14 | 204b41ad |
15 | 13b083a5 |
hex | cb8696d |
213412205 has 8 divisors (see below), whose sum is σ = 256245504. Its totient is φ = 170629200.
The previous prime is 213412187. The next prime is 213412211. The reversal of 213412205 is 502214312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 213412205 - 28 = 213411949 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501 + ... + 20810.
It is an arithmetic number, because the mean of its divisors is an integer number (32030688).
Almost surely, 2213412205 is an apocalyptic number.
It is an amenable number.
213412205 is a deficient number, since it is larger than the sum of its proper divisors (42833299).
213412205 is a wasteful number, since it uses less digits than its factorization.
213412205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25147.
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 213412205 is about 14608.6346042332. The cubic root of 213412205 is about 597.5942604392.
Adding to 213412205 its reverse (502214312), we get a palindrome (715626517).
The spelling of 213412205 in words is "two hundred thirteen million, four hundred twelve thousand, two hundred five".
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