Base | Representation |
---|---|
bin | 11001011010000… |
… | …01000001011100 |
3 | 112212000222122020 |
4 | 30231001001130 |
5 | 414030033020 |
6 | 33052020140 |
7 | 5165360163 |
oct | 1455010134 |
9 | 485028566 |
10 | 213127260 |
11 | aa339735 |
12 | 5b461650 |
13 | 35202408 |
14 | 2043c3da |
15 | 13a9dc40 |
hex | cb4105c |
213127260 has 48 divisors (see below), whose sum is σ = 598927392. Its totient is φ = 56627200.
The previous prime is 213127253. The next prime is 213127261. The reversal of 213127260 is 62721312.
It is a self number, because there is not a number n which added to its sum of digits gives 213127260.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213127261) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10540 + ... + 23180.
It is an arithmetic number, because the mean of its divisors is an integer number (12477654).
Almost surely, 2213127260 is an apocalyptic number.
213127260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
213127260 is an abundant number, since it is smaller than the sum of its proper divisors (385800132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213127260 is a wasteful number, since it uses less digits than its factorization.
213127260 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12934 (or 12932 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 213127260 is about 14598.8787240664. The cubic root of 213127260 is about 597.3281754721.
Adding to 213127260 its reverse (62721312), we get a palindrome (275848572).
The spelling of 213127260 in words is "two hundred thirteen million, one hundred twenty-seven thousand, two hundred sixty".
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