Search a number
-
+
80138 = 2172357
BaseRepresentation
bin10011100100001010
311001221002
4103210022
510031023
61415002
7452432
oct234412
9131832
1080138
1155233
123a462
132a626
14212c2
1518b28
hex1390a

80138 has 8 divisors (see below), whose sum is σ = 127332. Its totient is φ = 37696.

The previous prime is 80111. The next prime is 80141. The reversal of 80138 is 83108.

It can be written as a sum of positive squares in 2 ways, for example, as 80089 + 49 = 283^2 + 7^2 .

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

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, 1145 + ... + 1212.

280138 is an apocalyptic number.

80138 is a deficient number, since it is larger than the sum of its proper divisors (47194).

80138 is a wasteful number, since it uses less digits than its factorization.

80138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 80138 is about 283.0865592005. The cubic root of 80138 is about 43.1134555670.

The spelling of 80138 in words is "eighty thousand, one hundred thirty-eight".

Divisors: 1 2 17 34 2357 4714 40069 80138