Base | Representation |
---|---|
bin | 11001001011011… |
… | …00111100011101 |
3 | 112201102120200002 |
4 | 30211230330131 |
5 | 413032210023 |
6 | 32542544045 |
7 | 5143153430 |
oct | 1445547435 |
9 | 481376602 |
10 | 211210013 |
11 | a924a233 |
12 | 5a898025 |
13 | 349b0851 |
14 | 2009d817 |
15 | 13820b28 |
hex | c96cf1d |
211210013 has 8 divisors (see below), whose sum is σ = 241816128. Its totient is φ = 180712224.
The previous prime is 211210009. The next prime is 211210067. The reversal of 211210013 is 310012112.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 211210013 - 22 = 211210009 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 211209976 and 211210003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211210003) 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, 22856 + ... + 30737.
It is an arithmetic number, because the mean of its divisors is an integer number (30227016).
Almost surely, 2211210013 is an apocalyptic number.
It is an amenable number.
211210013 is a deficient number, since it is larger than the sum of its proper divisors (30606115).
211210013 is an equidigital number, since it uses as much as digits as its factorization.
211210013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54163.
The product of its (nonzero) digits is 12, while the sum is 11.
The square root of 211210013 is about 14533.0661940280. The cubic root of 211210013 is about 595.5316322765.
Adding to 211210013 its reverse (310012112), we get a palindrome (521222125).
The spelling of 211210013 in words is "two hundred eleven million, two hundred ten thousand, thirteen".
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