Base | Representation |
---|---|
bin | 10000110000010… |
… | …111011000010011 |
3 | 201120222002002111 |
4 | 100300113120103 |
5 | 1033431123011 |
6 | 43521130151 |
7 | 6652300504 |
oct | 2060273023 |
9 | 646862074 |
10 | 281114131 |
11 | 134755231 |
12 | 7a189957 |
13 | 4631782c |
14 | 29498bab |
15 | 19a2d121 |
hex | 10c17613 |
281114131 has 2 divisors, whose sum is σ = 281114132. Its totient is φ = 281114130.
The previous prime is 281114129. The next prime is 281114137. The reversal of 281114131 is 131411182.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 281114131 - 21 = 281114129 is a prime.
It is a super-2 number, since 2×2811141312 = 158050309295770322, which contains 22 as substring.
Together with 281114129, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (281114137) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140557065 + 140557066.
It is an arithmetic number, because the mean of its divisors is an integer number (140557066).
Almost surely, 2281114131 is an apocalyptic number.
281114131 is a deficient number, since it is larger than the sum of its proper divisors (1).
281114131 is an equidigital number, since it uses as much as digits as its factorization.
281114131 is an evil number, because the sum of its binary digits is even.
The product of its digits is 192, while the sum is 22.
The square root of 281114131 is about 16766.4585109677. The cubic root of 281114131 is about 655.0798271101.
The spelling of 281114131 in words is "two hundred eighty-one million, one hundred fourteen thousand, one hundred thirty-one".
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