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80211 = 326737
BaseRepresentation
bin10011100101010011
311002000210
4103211103
510031321
61415203
7452565
oct234523
9132023
1080211
115529a
123a503
132a681
1421335
1518b76
hex13953

80211 has 4 divisors (see below), whose sum is σ = 106952. Its totient is φ = 53472.

The previous prime is 80209. The next prime is 80221. The reversal of 80211 is 11208.

It is a happy number.

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

It is not a de Polignac number, because 80211 - 21 = 80209 is a prime.

It is a D-number.

It is a Duffinian number.

80211 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 80211.

It is not an unprimeable number, because it can be changed into a prime (80221) 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, 13366 + ... + 13371.

It is an arithmetic number, because the mean of its divisors is an integer number (26738).

280211 is an apocalyptic number.

80211 is a deficient number, since it is larger than the sum of its proper divisors (26741).

80211 is a wasteful number, since it uses less digits than its factorization.

80211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26740.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 80211 is about 283.2154656794. The cubic root of 80211 is about 43.1265426879.

Adding to 80211 its reverse (11208), we get a palindrome (91419).

The spelling of 80211 in words is "eighty thousand, two hundred eleven".

Divisors: 1 3 26737 80211