Base | Representation |
---|---|
bin | 11001011111110… |
… | …01011111010111 |
3 | 112220110101002122 |
4 | 30233321133113 |
5 | 414223222324 |
6 | 33120130155 |
7 | 5204655062 |
oct | 1457713727 |
9 | 486411078 |
10 | 213882839 |
11 | aa805385 |
12 | 5b76695b |
13 | 354082c1 |
14 | 205978d9 |
15 | 13b9ca5e |
hex | cbf97d7 |
213882839 has 2 divisors, whose sum is σ = 213882840. Its totient is φ = 213882838.
The previous prime is 213882833. The next prime is 213882871. The reversal of 213882839 is 938288312.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 213882839 - 220 = 212834263 is a prime.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 213882839.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (213882833) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106941419 + 106941420.
It is an arithmetic number, because the mean of its divisors is an integer number (106941420).
Almost surely, 2213882839 is an apocalyptic number.
213882839 is a deficient number, since it is larger than the sum of its proper divisors (1).
213882839 is an equidigital number, since it uses as much as digits as its factorization.
213882839 is an evil number, because the sum of its binary digits is even.
The product of its digits is 165888, while the sum is 44.
The square root of 213882839 is about 14624.7338095433. The cubic root of 213882839 is about 598.0332257837.
The spelling of 213882839 in words is "two hundred thirteen million, eight hundred eighty-two thousand, eight hundred thirty-nine".
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