Base | Representation |
---|---|
bin | 1001100100000… |
… | …01100001001000 |
3 | 12120221201021120 |
4 | 10302001201020 |
5 | 131014103110 |
6 | 11543235240 |
7 | 1662610125 |
oct | 462014110 |
9 | 176851246 |
10 | 80222280 |
11 | 41313206 |
12 | 22a48b20 |
13 | 1380a608 |
14 | a92374c |
15 | 7099870 |
hex | 4c81848 |
80222280 has 64 divisors (see below), whose sum is σ = 243086400. Its totient is φ = 21177600.
The previous prime is 80222257. The next prime is 80222297. The reversal of 80222280 is 8222208.
It is a super-2 number, since 2×802222802 = 12871228416796800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 80222280.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8811 + ... + 15429.
It is an arithmetic number, because the mean of its divisors is an integer number (3798225).
Almost surely, 280222280 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80222280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121543200).
80222280 is an abundant number, since it is smaller than the sum of its proper divisors (162864120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80222280 is a wasteful number, since it uses less digits than its factorization.
80222280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6734 (or 6730 counting only the distinct ones).
The product of its (nonzero) digits is 1024, while the sum is 24.
The square root of 80222280 is about 8956.6891204284. The cubic root of 80222280 is about 431.2856420867.
Adding to 80222280 its reverse (8222208), we get a palindrome (88444488).
The spelling of 80222280 in words is "eighty million, two hundred twenty-two thousand, two hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •