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80841 = 326947
BaseRepresentation
bin10011101111001001
311002220010
4103233021
510041331
61422133
7454455
oct235711
9132803
1080841
1155812
123a949
132aa47
1421665
1518e46
hex13bc9

80841 has 4 divisors (see below), whose sum is σ = 107792. Its totient is φ = 53892.

The previous prime is 80833. The next prime is 80849. The reversal of 80841 is 14808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (80833) and next prime (80849).

It is not a de Polignac number, because 80841 - 23 = 80833 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80849) 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, 13471 + ... + 13476.

It is an arithmetic number, because the mean of its divisors is an integer number (26948).

280841 is an apocalyptic number.

It is an amenable number.

80841 is a deficient number, since it is larger than the sum of its proper divisors (26951).

80841 is a wasteful number, since it uses less digits than its factorization.

80841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26950.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 80841 is about 284.3255176730. The cubic root of 80841 is about 43.2391577397.

The spelling of 80841 in words is "eighty thousand, eight hundred forty-one".

Divisors: 1 3 26947 80841