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109255 = 521851
BaseRepresentation
bin11010101011000111
312112212111
4122223013
511444010
62201451
7633346
oct325307
9175774
10109255
11750a3
1253287
133a963
142bb5d
152258a
hex1aac7

109255 has 4 divisors (see below), whose sum is σ = 131112. Its totient is φ = 87400.

The previous prime is 109253. The next prime is 109267. The reversal of 109255 is 552901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552901 = 659839.

It is not a de Polignac number, because 109255 - 21 = 109253 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10921 + ... + 10930.

It is an arithmetic number, because the mean of its divisors is an integer number (32778).

2109255 is an apocalyptic number.

109255 is a deficient number, since it is larger than the sum of its proper divisors (21857).

109255 is an equidigital number, since it uses as much as digits as its factorization.

109255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21856.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 109255 is about 330.5374411470. The cubic root of 109255 is about 47.8057835127.

The spelling of 109255 in words is "one hundred nine thousand, two hundred fifty-five".

Divisors: 1 5 21851 109255