Base | Representation |
---|---|
bin | 11001000110001… |
… | …11001010011101 |
3 | 112200011002012110 |
4 | 30203013022131 |
5 | 412343442343 |
6 | 32520224233 |
7 | 5134324632 |
oct | 1443071235 |
9 | 480132173 |
10 | 210530973 |
11 | a8926044 |
12 | 5a60b079 |
13 | 34803753 |
14 | 1dd64189 |
15 | 13739833 |
hex | c8c729d |
210530973 has 4 divisors (see below), whose sum is σ = 280707968. Its totient is φ = 140353980.
The previous prime is 210530959. The next prime is 210530987. The reversal of 210530973 is 379035012.
210530973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is an interprime number because it is at equal distance from previous prime (210530959) and next prime (210530987).
It is not a de Polignac number, because 210530973 - 28 = 210530717 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 210530973.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (210530273) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35088493 + ... + 35088498.
It is an arithmetic number, because the mean of its divisors is an integer number (70176992).
Almost surely, 2210530973 is an apocalyptic number.
It is an amenable number.
210530973 is a deficient number, since it is larger than the sum of its proper divisors (70176995).
210530973 is an equidigital number, since it uses as much as digits as its factorization.
210530973 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 70176994.
The product of its (nonzero) digits is 5670, while the sum is 30.
The square root of 210530973 is about 14509.6854893550. The cubic root of 210530973 is about 594.8927358838.
Adding to 210530973 its reverse (379035012), we get a palindrome (589565985).
The spelling of 210530973 in words is "two hundred ten million, five hundred thirty thousand, nine hundred seventy-three".
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