Base | Representation |
---|---|
bin | 11001000011001… |
… | …01110100000111 |
3 | 112122101211020020 |
4 | 30201211310013 |
5 | 412243212411 |
6 | 32503510223 |
7 | 5131044261 |
oct | 1441456407 |
9 | 478354206 |
10 | 210132231 |
11 | a8683501 |
12 | 5a458373 |
13 | 346c40ca |
14 | 1dc9cb31 |
15 | 136ab606 |
hex | c865d07 |
210132231 has 16 divisors (see below), whose sum is σ = 291164160. Its totient is φ = 134638560.
The previous prime is 210132203. The next prime is 210132233. The reversal of 210132231 is 132231012.
It is not a de Polignac number, because 210132231 - 27 = 210132103 is a prime.
It is a super-2 number, since 2×2101322312 = 88311109010074722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 210132231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (210132233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13986 + ... + 24816.
It is an arithmetic number, because the mean of its divisors is an integer number (18197760).
Almost surely, 2210132231 is an apocalyptic number.
210132231 is a deficient number, since it is larger than the sum of its proper divisors (81031929).
210132231 is a wasteful number, since it uses less digits than its factorization.
210132231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11086.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 210132231 is about 14495.9384311606. The cubic root of 210132231 is about 594.5169263610.
Adding to 210132231 its reverse (132231012), we get a palindrome (342363243).
The spelling of 210132231 in words is "two hundred ten million, one hundred thirty-two thousand, two hundred thirty-one".
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