Base | Representation |
---|---|
bin | 1001100100110… |
… | …01110111101110 |
3 | 12121010210010000 |
4 | 10302121313232 |
5 | 131030301110 |
6 | 11545325130 |
7 | 1663504005 |
oct | 462316756 |
9 | 177123100 |
10 | 80322030 |
11 | 41381148 |
12 | 22a967a6 |
13 | 13843b39 |
14 | a94bc3c |
15 | 70b91c0 |
hex | 4c99dee |
80322030 has 80 divisors (see below), whose sum is σ = 220169664. Its totient is φ = 21003840.
The previous prime is 80322019. The next prime is 80322031. The reversal of 80322030 is 3022308.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 80321994 and 80322012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80322031) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41995 + ... + 43865.
Almost surely, 280322030 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80322030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110084832).
80322030 is an abundant number, since it is smaller than the sum of its proper divisors (139847634).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80322030 is a wasteful number, since it uses less digits than its factorization.
80322030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1943 (or 1934 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 80322030 is about 8962.2558544152. The cubic root of 80322030 is about 431.4643244684.
Adding to 80322030 its reverse (3022308), we get a palindrome (83344338).
The spelling of 80322030 in words is "eighty million, three hundred twenty-two thousand, thirty".
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