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80015 = 5131231
BaseRepresentation
bin10011100010001111
311001202112
4103202033
510030030
61414235
7452165
oct234217
9131675
1080015
1155131
123a37b
132a560
1421235
1518a95
hex1388f

80015 has 8 divisors (see below), whose sum is σ = 103488. Its totient is φ = 59040.

The previous prime is 79999. The next prime is 80021. The reversal of 80015 is 51008.

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

It is not a de Polignac number, because 80015 - 24 = 79999 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (12936).

280015 is an apocalyptic number.

80015 is a deficient number, since it is larger than the sum of its proper divisors (23473).

80015 is a wasteful number, since it uses less digits than its factorization.

80015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 80015 is about 282.8692277361. The cubic root of 80015 is about 43.0913866757.

The spelling of 80015 in words is "eighty thousand, fifteen".

Divisors: 1 5 13 65 1231 6155 16003 80015