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80695 = 516139
BaseRepresentation
bin10011101100110111
311002200201
4103230313
510040240
61421331
7454156
oct235467
9132621
1080695
115569a
123a847
132a964
142159d
1518d9a
hex13b37

80695 has 4 divisors (see below), whose sum is σ = 96840. Its totient is φ = 64552.

The previous prime is 80687. The next prime is 80701. The reversal of 80695 is 59608.

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

It is a cyclic number.

It is not a de Polignac number, because 80695 - 23 = 80687 is a prime.

It is a plaindrome 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8065 + ... + 8074.

It is an arithmetic number, because the mean of its divisors is an integer number (24210).

280695 is an apocalyptic number.

80695 is a deficient number, since it is larger than the sum of its proper divisors (16145).

80695 is a wasteful number, since it uses less digits than its factorization.

80695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16144.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 80695 is about 284.0686536737. The cubic root of 80695 is about 43.2131118750.

The spelling of 80695 in words is "eighty thousand, six hundred ninety-five".

Divisors: 1 5 16139 80695