Base | Representation |
---|---|
bin | 11001011010001… |
… | …10100100111101 |
3 | 112212002010211221 |
4 | 30231012210331 |
5 | 414031300023 |
6 | 33052313341 |
7 | 5165513416 |
oct | 1455064475 |
9 | 485063757 |
10 | 213150013 |
11 | aa35483a |
12 | 5b472851 |
13 | 3520c88b |
14 | 2044680d |
15 | 13aa585d |
hex | cb4693d |
213150013 has 8 divisors (see below), whose sum is σ = 215847000. Its totient is φ = 210470208.
The previous prime is 213150001. The next prime is 213150053. The reversal of 213150013 is 310051312.
It can be written as a sum of positive squares in 4 ways, for example, as 80946009 + 132204004 = 8997^2 + 11498^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 213150013 - 217 = 213018941 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213150053) 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, 21643 + ... + 29911.
It is an arithmetic number, because the mean of its divisors is an integer number (26980875).
Almost surely, 2213150013 is an apocalyptic number.
It is an amenable number.
213150013 is a deficient number, since it is larger than the sum of its proper divisors (2696987).
213150013 is a wasteful number, since it uses less digits than its factorization.
213150013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8591.
The product of its (nonzero) digits is 90, while the sum is 16.
The square root of 213150013 is about 14599.6579754459. The cubic root of 213150013 is about 597.3494311988.
The spelling of 213150013 in words is "two hundred thirteen million, one hundred fifty thousand, thirteen".
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