Base | Representation |
---|---|
bin | 101111110001100… |
… | …110000101000100 |
3 | 2001212012221200222 |
4 | 233301212011010 |
5 | 3120142431210 |
6 | 211311323512 |
7 | 25601615453 |
oct | 5761460504 |
9 | 2055187628 |
10 | 801530180 |
11 | 381496540 |
12 | 1a4520598 |
13 | ca09a519 |
14 | 78646b9a |
15 | 4a57a655 |
hex | 2fc66144 |
801530180 has 48 divisors (see below), whose sum is σ = 1838640384. Its totient is φ = 291083520.
The previous prime is 801530167. The next prime is 801530209. The reversal of 801530180 is 81035108.
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, 207749 + ... + 211571.
It is an arithmetic number, because the mean of its divisors is an integer number (38305008).
Almost surely, 2801530180 is an apocalyptic number.
It is an amenable number.
801530180 is an abundant number, since it is smaller than the sum of its proper divisors (1037110204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
801530180 is a wasteful number, since it uses less digits than its factorization.
801530180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4796 (or 4794 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 26.
The square root of 801530180 is about 28311.3083413678. The cubic root of 801530180 is about 928.9092619602.
Adding to 801530180 its reverse (81035108), we get a palindrome (882565288).
The spelling of 801530180 in words is "eight hundred one million, five hundred thirty thousand, one hundred eighty".
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