Base | Representation |
---|---|
bin | 11001011100001… |
… | …10001110010101 |
3 | 112212120101110100 |
4 | 30232012032111 |
5 | 414113120314 |
6 | 33102044313 |
7 | 5200650441 |
oct | 1456061625 |
9 | 485511410 |
10 | 213410709 |
11 | aa512696 |
12 | 5b579699 |
13 | 352a1435 |
14 | 204b3821 |
15 | 13b07c09 |
hex | cb86395 |
213410709 has 12 divisors (see below), whose sum is σ = 316591756. Its totient is φ = 138428352.
The previous prime is 213410693. The next prime is 213410713. The reversal of 213410709 is 907014312.
213410709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 146531025 + 66879684 = 12105^2 + 8178^2 .
It is not a de Polignac number, because 213410709 - 24 = 213410693 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 (213410719) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320104 + ... + 320769.
Almost surely, 2213410709 is an apocalyptic number.
It is an amenable number.
213410709 is a deficient number, since it is larger than the sum of its proper divisors (103181047).
213410709 is a wasteful number, since it uses less digits than its factorization.
213410709 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 640916 (or 640913 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 213410709 is about 14608.5834015486. The cubic root of 213410709 is about 597.5928640756.
The spelling of 213410709 in words is "two hundred thirteen million, four hundred ten thousand, seven hundred nine".
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