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27995 = 511509
BaseRepresentation
bin110110101011011
31102101212
412311123
51343440
6333335
7144422
oct66533
942355
1027995
111a040
121424b
13c986
14a2b9
158465
hex6d5b

27995 has 8 divisors (see below), whose sum is σ = 36720. Its totient is φ = 20320.

The previous prime is 27983. The next prime is 27997. The reversal of 27995 is 59972.

27995 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 27995 - 28 = 27739 is a prime.

It is a plaindrome in base 6.

It is a nialpdrome in base 8 and base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200 + ... + 309.

It is an arithmetic number, because the mean of its divisors is an integer number (4590).

227995 is an apocalyptic number.

27995 is a deficient number, since it is larger than the sum of its proper divisors (8725).

27995 is a wasteful number, since it uses less digits than its factorization.

27995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525.

The product of its digits is 5670, while the sum is 32.

The square root of 27995 is about 167.3170642822. The cubic root of 27995 is about 30.3640821177.

It can be divided in two parts, 2 and 7995, that added together give a palindrome (7997).

The spelling of 27995 in words is "twenty-seven thousand, nine hundred ninety-five".

Divisors: 1 5 11 55 509 2545 5599 27995