Base | Representation |
---|---|
bin | 1001100100001… |
… | …11001101100101 |
3 | 12120222220021110 |
4 | 10302013031211 |
5 | 131020324410 |
6 | 11543535233 |
7 | 1663035126 |
oct | 462071545 |
9 | 176886243 |
10 | 80245605 |
11 | 41329790 |
12 | 22a5a519 |
13 | 1381810b |
14 | a92c04d |
15 | 70a1720 |
hex | 4c87365 |
80245605 has 32 divisors (see below), whose sum is σ = 142456320. Its totient is φ = 38242880.
The previous prime is 80245579. The next prime is 80245609. The reversal of 80245605 is 50654208.
It is not a de Polignac number, because 80245605 - 26 = 80245541 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80245609) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5614 + ... + 13856.
It is an arithmetic number, because the mean of its divisors is an integer number (4451760).
Almost surely, 280245605 is an apocalyptic number.
It is an amenable number.
80245605 is a deficient number, since it is larger than the sum of its proper divisors (62210715).
80245605 is a wasteful number, since it uses less digits than its factorization.
80245605 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8321.
The product of its (nonzero) digits is 9600, while the sum is 30.
The square root of 80245605 is about 8957.9911252468. The cubic root of 80245605 is about 431.3274374699.
The spelling of 80245605 in words is "eighty million, two hundred forty-five thousand, six hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •