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105841 = 531997
BaseRepresentation
bin11001110101110001
312101012001
4121311301
511341331
62134001
7620401
oct316561
9171161
10105841
117257a
1251301
1339238
142a801
1521561
hex19d71

105841 has 4 divisors (see below), whose sum is σ = 107892. Its totient is φ = 103792.

The previous prime is 105829. The next prime is 105863. The reversal of 105841 is 148501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32400 + 73441 = 180^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 105841 - 213 = 97649 is a prime.

It is a super-2 number, since 2×1058412 = 22404634562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105871) 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, 946 + ... + 1051.

It is an arithmetic number, because the mean of its divisors is an integer number (26973).

2105841 is an apocalyptic number.

It is an amenable number.

105841 is a deficient number, since it is larger than the sum of its proper divisors (2051).

105841 is an equidigital number, since it uses as much as digits as its factorization.

105841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 105841 is about 325.3321379759. The cubic root of 105841 is about 47.3025599527.

It can be divided in two parts, 10584 and 1, that added together give a triangular number (10585 = T145).

The spelling of 105841 in words is "one hundred five thousand, eight hundred forty-one".

Divisors: 1 53 1997 105841