Base | Representation |
---|---|
bin | 11001011111110… |
… | …10000101000101 |
3 | 112220110111102001 |
4 | 30233322011011 |
5 | 414223312003 |
6 | 33120145301 |
7 | 5204665111 |
oct | 1457720505 |
9 | 486414361 |
10 | 213885253 |
11 | aa80717a |
12 | 5b768231 |
13 | 3540942a |
14 | 20598741 |
15 | 13b9d61d |
hex | cbfa145 |
213885253 has 2 divisors, whose sum is σ = 213885254. Its totient is φ = 213885252.
The previous prime is 213885247. The next prime is 213885307. The reversal of 213885253 is 352588312.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 213802884 + 82369 = 14622^2 + 287^2 .
It is a cyclic number.
It is not a de Polignac number, because 213885253 - 217 = 213754181 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (213885853) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106942626 + 106942627.
It is an arithmetic number, because the mean of its divisors is an integer number (106942627).
Almost surely, 2213885253 is an apocalyptic number.
It is an amenable number.
213885253 is a deficient number, since it is larger than the sum of its proper divisors (1).
213885253 is an equidigital number, since it uses as much as digits as its factorization.
213885253 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 57600, while the sum is 37.
The square root of 213885253 is about 14624.8163407272. The cubic root of 213885253 is about 598.0354756865.
The spelling of 213885253 in words is "two hundred thirteen million, eight hundred eighty-five thousand, two hundred fifty-three".
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