Base | Representation |
---|---|
bin | 1111100111011… |
… | …11011101011101 |
3 | 100010111201001101 |
4 | 13303233131131 |
5 | 232014114003 |
6 | 20555513101 |
7 | 3150342412 |
oct | 763573535 |
9 | 303451041 |
10 | 131004253 |
11 | 67a48486 |
12 | 37a58791 |
13 | 211aa913 |
14 | 13582109 |
15 | b77b11d |
hex | 7cef75d |
131004253 has 2 divisors, whose sum is σ = 131004254. Its totient is φ = 131004252.
The previous prime is 131004217. The next prime is 131004277. The reversal of 131004253 is 352400131.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 89813529 + 41190724 = 9477^2 + 6418^2 .
It is an emirp because it is prime and its reverse (352400131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 131004253 - 221 = 128907101 is a prime.
It is a super-2 number, since 2×1310042532 = 34324228608176018, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 131004253.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131004283) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65502126 + 65502127.
It is an arithmetic number, because the mean of its divisors is an integer number (65502127).
Almost surely, 2131004253 is an apocalyptic number.
It is an amenable number.
131004253 is a deficient number, since it is larger than the sum of its proper divisors (1).
131004253 is an equidigital number, since it uses as much as digits as its factorization.
131004253 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 131004253 is about 11445.7089339193. The cubic root of 131004253 is about 507.8808039209.
Adding to 131004253 its reverse (352400131), we get a palindrome (483404384).
The spelling of 131004253 in words is "one hundred thirty-one million, four thousand, two hundred fifty-three".
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