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80895 = 355393
BaseRepresentation
bin10011101111111111
311002222010
4103233333
510042040
61422303
7454563
oct235777
9132863
1080895
1155861
123a993
132aa89
14216a3
1518e80
hex13bff

80895 has 8 divisors (see below), whose sum is σ = 129456. Its totient is φ = 43136.

The previous prime is 80863. The next prime is 80897. The reversal of 80895 is 59808.

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 80895 - 25 = 80863 is a prime.

It is a plaindrome in base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80897) 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, 2682 + ... + 2711.

It is an arithmetic number, because the mean of its divisors is an integer number (16182).

280895 is an apocalyptic number.

80895 is a deficient number, since it is larger than the sum of its proper divisors (48561).

80895 is a wasteful number, since it uses less digits than its factorization.

80895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5401.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 80895 is about 284.4204633988. The cubic root of 80895 is about 43.2487831972.

It can be divided in two parts, 808 and 95, that added together give a triangular number (903 = T42).

The spelling of 80895 in words is "eighty thousand, eight hundred ninety-five".

Divisors: 1 3 5 15 5393 16179 26965 80895