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80943 = 326981
BaseRepresentation
bin10011110000101111
311010000220
4103300233
510042233
61422423
7454662
oct236057
9133026
1080943
11558a5
123aa13
132aac5
14216d9
1518eb3
hex13c2f

80943 has 4 divisors (see below), whose sum is σ = 107928. Its totient is φ = 53960.

The previous prime is 80933. The next prime is 80953. The reversal of 80943 is 34908.

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

It is an interprime number because it is at equal distance from previous prime (80933) and next prime (80953).

It is a cyclic number.

It is not a de Polignac number, because 80943 - 25 = 80911 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13488 + ... + 13493.

It is an arithmetic number, because the mean of its divisors is an integer number (26982).

280943 is an apocalyptic number.

80943 is a deficient number, since it is larger than the sum of its proper divisors (26985).

80943 is a wasteful number, since it uses less digits than its factorization.

80943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26984.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 80943 is about 284.5048329994. The cubic root of 80943 is about 43.2573355640.

The spelling of 80943 in words is "eighty thousand, nine hundred forty-three".

Divisors: 1 3 26981 80943