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80087 = 717673
BaseRepresentation
bin10011100011010111
311001212012
4103203113
510030322
61414435
7452330
oct234327
9131765
1080087
1155197
123a41b
132a5b7
1421287
1518ae2
hex138d7

80087 has 8 divisors (see below), whose sum is σ = 97056. Its totient is φ = 64512.

The previous prime is 80077. The next prime is 80107. The reversal of 80087 is 78008.

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

It is not a de Polignac number, because 80087 - 24 = 80071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80077) 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, 218 + ... + 455.

It is an arithmetic number, because the mean of its divisors is an integer number (12132).

280087 is an apocalyptic number.

80087 is a deficient number, since it is larger than the sum of its proper divisors (16969).

80087 is a wasteful number, since it uses less digits than its factorization.

80087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 80087 is about 282.9964664090. The cubic root of 80087 is about 43.1043077934.

The spelling of 80087 in words is "eighty thousand, eighty-seven".

Divisors: 1 7 17 119 673 4711 11441 80087