Base | Representation |
---|---|
bin | 11001011001010… |
… | …01100011110001 |
3 | 112211212002210201 |
4 | 30230221203301 |
5 | 414013444103 |
6 | 33045555201 |
7 | 5164510036 |
oct | 1454514361 |
9 | 484762721 |
10 | 213031153 |
11 | aa283505 |
12 | 5b415b01 |
13 | 3519a74a |
14 | 2041538d |
15 | 13a8051d |
hex | cb298f1 |
213031153 has 2 divisors, whose sum is σ = 213031154. Its totient is φ = 213031152.
The previous prime is 213031069. The next prime is 213031157. The reversal of 213031153 is 351130312.
213031153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 111767184 + 101263969 = 10572^2 + 10063^2 .
It is a cyclic number.
It is not a de Polignac number, because 213031153 - 217 = 212900081 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 213031153.
It is not a weakly prime, because it can be changed into another prime (213031157) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106515576 + 106515577.
It is an arithmetic number, because the mean of its divisors is an integer number (106515577).
Almost surely, 2213031153 is an apocalyptic number.
It is an amenable number.
213031153 is a deficient number, since it is larger than the sum of its proper divisors (1).
213031153 is an equidigital number, since it uses as much as digits as its factorization.
213031153 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 270, while the sum is 19.
The square root of 213031153 is about 14595.5867644984. The cubic root of 213031153 is about 597.2383761504.
Adding to 213031153 its reverse (351130312), we get a palindrome (564161465).
The spelling of 213031153 in words is "two hundred thirteen million, thirty-one thousand, one hundred fifty-three".
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