Search a number
-
+
80989235 = 5157103171
BaseRepresentation
bin1001101001111…
…00110000110011
312122101200100022
410310330300303
5131213123420
612011514055
72002253135
oct464746063
9178350308
1080989235
1141797458
122315892b
1313a18732
14aa83055
15719bc25
hex4d3cc33

80989235 has 8 divisors (see below), whose sum is σ = 97807056. Its totient is φ = 64378080.

The previous prime is 80989231. The next prime is 80989243. The reversal of 80989235 is 53298908.

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

It is not a de Polignac number, because 80989235 - 22 = 80989231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80989231) 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, 50801 + ... + 52370.

It is an arithmetic number, because the mean of its divisors is an integer number (12225882).

Almost surely, 280989235 is an apocalyptic number.

80989235 is a deficient number, since it is larger than the sum of its proper divisors (16817821).

80989235 is a wasteful number, since it uses less digits than its factorization.

80989235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103333.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 80989235 is about 8999.4019245725. The cubic root of 80989235 is about 432.6557025682.

The spelling of 80989235 in words is "eighty million, nine hundred eighty-nine thousand, two hundred thirty-five".

Divisors: 1 5 157 785 103171 515855 16197847 80989235