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80390 = 258039
BaseRepresentation
bin10011101000000110
311002021102
4103220012
510033030
61420102
7453242
oct235006
9132242
1080390
1155442
123a632
132a78b
1421422
1518c45
hex13a06

80390 has 8 divisors (see below), whose sum is σ = 144720. Its totient is φ = 32152.

The previous prime is 80387. The next prime is 80407. The reversal of 80390 is 9308.

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

It is a Curzon number.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4010 + ... + 4029.

It is an arithmetic number, because the mean of its divisors is an integer number (18090).

280390 is an apocalyptic number.

80390 is a deficient number, since it is larger than the sum of its proper divisors (64330).

80390 is a wasteful number, since it uses less digits than its factorization.

80390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8046.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 80390 is about 283.5313033864. The cubic root of 80390 is about 43.1585994541.

Adding to 80390 its reverse (9308), we get a palindrome (89698).

The spelling of 80390 in words is "eighty thousand, three hundred ninety".

Divisors: 1 2 5 10 8039 16078 40195 80390