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5291 = 111337
BaseRepresentation
bin1010010101011
321020222
41102223
5132131
640255
721266
oct12253
97228
105291
113a80
12308b
132540
141cdd
15187b
hex14ab

5291 has 8 divisors (see below), whose sum is σ = 6384. Its totient is φ = 4320.

The previous prime is 5281. The next prime is 5297. The reversal of 5291 is 1925.

5291 = T10 + T11 + ... + T31.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5291 - 26 = 5227 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 14 and base 16.

It is not an unprimeable number, because it can be changed into a prime (5297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 161.

It is an arithmetic number, because the mean of its divisors is an integer number (798).

25291 is an apocalyptic number.

5291 is a deficient number, since it is larger than the sum of its proper divisors (1093).

5291 is a wasteful number, since it uses less digits than its factorization.

5291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61.

The product of its digits is 90, while the sum is 17.

The square root of 5291 is about 72.7392603757. The cubic root of 5291 is about 17.4252594774.

The spelling of 5291 in words is "five thousand, two hundred ninety-one".

Divisors: 1 11 13 37 143 407 481 5291