Base | Representation |
---|---|
bin | 1001100101011… |
… | …10101010100101 |
3 | 12121022002221122 |
4 | 10302232222211 |
5 | 131041012310 |
6 | 11551223325 |
7 | 1664310224 |
oct | 462565245 |
9 | 177262848 |
10 | 80407205 |
11 | 4142a13a |
12 | 22b17b45 |
13 | 13873838 |
14 | a970cbb |
15 | 70d4555 |
hex | 4caeaa5 |
80407205 has 8 divisors (see below), whose sum is σ = 98732832. Its totient is φ = 62829648.
The previous prime is 80407199. The next prime is 80407213. The reversal of 80407205 is 50270408.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80407205 - 26 = 80407141 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186779 + ... + 187208.
It is an arithmetic number, because the mean of its divisors is an integer number (12341604).
Almost surely, 280407205 is an apocalyptic number.
It is an amenable number.
80407205 is a deficient number, since it is larger than the sum of its proper divisors (18325627).
80407205 is a wasteful number, since it uses less digits than its factorization.
80407205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 374035.
The product of its (nonzero) digits is 2240, while the sum is 26.
The square root of 80407205 is about 8967.0064681587. The cubic root of 80407205 is about 431.6167815687.
The spelling of 80407205 in words is "eighty million, four hundred seven thousand, two hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.025 sec. • engine limits •