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80969 = 743269
BaseRepresentation
bin10011110001001001
311010001212
4103301021
510042334
61422505
7455030
oct236111
9133055
1080969
1155919
123aa35
132ab15
1421717
1518ece
hex13c49

80969 has 8 divisors (see below), whose sum is σ = 95040. Its totient is φ = 67536.

The previous prime is 80963. The next prime is 80989. The reversal of 80969 is 96908.

It is a happy number.

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

It is not a de Polignac number, because 80969 - 24 = 80953 is a prime.

It is a super-2 number, since 2×809692 = 13111957922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80963) 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, 167 + ... + 435.

It is an arithmetic number, because the mean of its divisors is an integer number (11880).

280969 is an apocalyptic number.

It is an amenable number.

80969 is a deficient number, since it is larger than the sum of its proper divisors (14071).

80969 is a wasteful number, since it uses less digits than its factorization.

80969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 80969 is about 284.5505227547. The cubic root of 80969 is about 43.2619666843.

It can be divided in two parts, 809 and 69, that added together give a palindrome (878).

The spelling of 80969 in words is "eighty thousand, nine hundred sixty-nine".

Divisors: 1 7 43 269 301 1883 11567 80969