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16271 = 53307
BaseRepresentation
bin11111110001111
3211022122
43332033
51010041
6203155
765303
oct37617
924278
1016271
1111252
1294bb
137538
145d03
154c4b
hex3f8f

16271 has 4 divisors (see below), whose sum is σ = 16632. Its totient is φ = 15912.

The previous prime is 16267. The next prime is 16273. The reversal of 16271 is 17261.

Subtracting 16271 from its reverse (17261), we obtain a triangular number (990 = T44).

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17261 = 41421.

It is a cyclic number.

It is not a de Polignac number, because 16271 - 22 = 16267 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101 + ... + 206.

It is an arithmetic number, because the mean of its divisors is an integer number (4158).

216271 is an apocalyptic number.

16271 is a deficient number, since it is larger than the sum of its proper divisors (361).

16271 is an equidigital number, since it uses as much as digits as its factorization.

16271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its digits is 84, while the sum is 17.

The square root of 16271 is about 127.5578300223. The cubic root of 16271 is about 25.3398913462.

The spelling of 16271 in words is "sixteen thousand, two hundred seventy-one".

Divisors: 1 53 307 16271