Base | Representation |
---|---|
bin | 1111101010000… |
… | …10001111110011 |
3 | 100011010221012102 |
4 | 13311002033303 |
5 | 232110441342 |
6 | 21011051015 |
7 | 3153254132 |
oct | 765021763 |
9 | 304127172 |
10 | 131343347 |
11 | 6815a223 |
12 | 37ba0a6b |
13 | 21299075 |
14 | 1362d919 |
15 | b7e6832 |
hex | 7d423f3 |
131343347 has 2 divisors, whose sum is σ = 131343348. Its totient is φ = 131343346.
The previous prime is 131343341. The next prime is 131343361. The reversal of 131343347 is 743343131.
It is a weak prime.
It is an emirp because it is prime and its reverse (743343131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 131343347 - 224 = 114566131 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (131343341) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65671673 + 65671674.
It is an arithmetic number, because the mean of its divisors is an integer number (65671674).
Almost surely, 2131343347 is an apocalyptic number.
131343347 is a deficient number, since it is larger than the sum of its proper divisors (1).
131343347 is an equidigital number, since it uses as much as digits as its factorization.
131343347 is an evil number, because the sum of its binary digits is even.
The product of its digits is 9072, while the sum is 29.
The square root of 131343347 is about 11460.5125103548. The cubic root of 131343347 is about 508.3186292859.
Adding to 131343347 its reverse (743343131), we get a palindrome (874686478).
The spelling of 131343347 in words is "one hundred thirty-one million, three hundred forty-three thousand, three hundred forty-seven".
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