Base | Representation |
---|---|
bin | 11001011010100… |
… | …10100110000111 |
3 | 112212011122101010 |
4 | 30231102212013 |
5 | 414034333424 |
6 | 33053333303 |
7 | 5166110061 |
oct | 1455224607 |
9 | 485148333 |
10 | 213199239 |
11 | aa388820 |
12 | 5b497233 |
13 | 352290c6 |
14 | 2045a731 |
15 | 13ab5229 |
hex | cb52987 |
213199239 has 8 divisors (see below), whose sum is σ = 310108032. Its totient is φ = 129211640.
The previous prime is 213199219. The next prime is 213199243. The reversal of 213199239 is 932991312.
213199239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 213199239 - 211 = 213197191 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 213199197 and 213199206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213199219) 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, 3230259 + ... + 3230324.
It is an arithmetic number, because the mean of its divisors is an integer number (38763504).
Almost surely, 2213199239 is an apocalyptic number.
213199239 is a deficient number, since it is larger than the sum of its proper divisors (96908793).
213199239 is a wasteful number, since it uses less digits than its factorization.
213199239 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6460597.
The product of its digits is 26244, while the sum is 39.
The square root of 213199239 is about 14601.3437395330. The cubic root of 213199239 is about 597.3954126796.
The spelling of 213199239 in words is "two hundred thirteen million, one hundred ninety-nine thousand, two hundred thirty-nine".
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