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BaseRepresentation
bin10011100010001011
311001202101
4103202023
510030021
61414231
7452161
oct234213
9131671
1080011
1155128
123a377
132a559
1421231
1518a91
hex1388b

80011 has 8 divisors (see below), whose sum is σ = 86400. Its totient is φ = 73920.

The previous prime is 79999. The next prime is 80021. The reversal of 80011 is 11008.

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

It is a cyclic number.

It is not a de Polignac number, because 80011 - 25 = 79979 is a prime.

It is a Duffinian number.

80011 is a modest number, since divided by 11 gives 8 as remainder.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 80011.

It is not an unprimeable number, because it can be changed into a prime (80021) 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, 855 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (10800).

280011 is an apocalyptic number.

80011 is the 127-th centered decagonal number.

80011 is a deficient number, since it is larger than the sum of its proper divisors (6389).

80011 is a wasteful number, since it uses less digits than its factorization.

80011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 80011 is about 282.8621572427. The cubic root of 80011 is about 43.0906686086.

Adding to 80011 its reverse (11008), we get a palindrome (91019).

The spelling of 80011 in words is "eighty thousand, eleven".

Divisors: 1 29 31 89 899 2581 2759 80011