Base | Representation |
---|---|
bin | 110110110001… |
… | …0010100011111 |
3 | 2000000211120112 |
4 | 1231202110133 |
5 | 24322324041 |
6 | 2503240235 |
7 | 466032035 |
oct | 155422437 |
9 | 60024515 |
10 | 28714271 |
11 | 15232503 |
12 | 974907b |
13 | 5c449c1 |
14 | 3b56555 |
15 | 27c2deb |
hex | 1b6251f |
28714271 has 2 divisors, whose sum is σ = 28714272. Its totient is φ = 28714270.
The previous prime is 28714261. The next prime is 28714289. The reversal of 28714271 is 17241782.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 28714271 - 210 = 28713247 is a prime.
It is a super-2 number, since 2×287142712 = 1649018718122882, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28714261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14357135 + 14357136.
It is an arithmetic number, because the mean of its divisors is an integer number (14357136).
Almost surely, 228714271 is an apocalyptic number.
28714271 is a deficient number, since it is larger than the sum of its proper divisors (1).
28714271 is an equidigital number, since it uses as much as digits as its factorization.
28714271 is an evil number, because the sum of its binary digits is even.
The product of its digits is 6272, while the sum is 32.
The square root of 28714271 is about 5358.5698651786. The cubic root of 28714271 is about 306.2193274293.
The spelling of 28714271 in words is "twenty-eight million, seven hundred fourteen thousand, two hundred seventy-one".
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