Base | Representation |
---|---|
bin | 1111100001011… |
… | …00101000101101 |
3 | 100002000011101211 |
4 | 13300230220231 |
5 | 231313100003 |
6 | 20530434421 |
7 | 3140510032 |
oct | 760545055 |
9 | 302004354 |
10 | 130206253 |
11 | 67552981 |
12 | 37732a11 |
13 | 20c8b628 |
14 | 13415389 |
15 | b66e96d |
hex | 7c2ca2d |
130206253 has 2 divisors, whose sum is σ = 130206254. Its totient is φ = 130206252.
The previous prime is 130206233. The next prime is 130206287. The reversal of 130206253 is 352602031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 85877289 + 44328964 = 9267^2 + 6658^2 .
It is an emirp because it is prime and its reverse (352602031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130206253 - 29 = 130205741 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130206203) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65103126 + 65103127.
It is an arithmetic number, because the mean of its divisors is an integer number (65103127).
Almost surely, 2130206253 is an apocalyptic number.
It is an amenable number.
130206253 is a deficient number, since it is larger than the sum of its proper divisors (1).
130206253 is an equidigital number, since it uses as much as digits as its factorization.
130206253 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1080, while the sum is 22.
The square root of 130206253 is about 11410.7954586874. The cubic root of 130206253 is about 506.8474669751.
Adding to 130206253 its reverse (352602031), we get a palindrome (482808284).
The spelling of 130206253 in words is "one hundred thirty million, two hundred six thousand, two hundred fifty-three".
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