Base | Representation |
---|---|
bin | 1001100110100… |
… | …01001111011110 |
3 | 12121120022020000 |
4 | 10303101033132 |
5 | 131110030310 |
6 | 11554235130 |
7 | 1665440145 |
oct | 463211736 |
9 | 177508200 |
10 | 80548830 |
11 | 4151658a |
12 | 22b85aa6 |
13 | 138c313b |
14 | a9aa75c |
15 | 71114c0 |
hex | 4cd13de |
80548830 has 80 divisors (see below), whose sum is σ = 217974240. Its totient is φ = 21342528.
The previous prime is 80548789. The next prime is 80548837. The reversal of 80548830 is 3884508.
80548830 is a `hidden beast` number, since 80 + 548 + 8 + 30 = 666.
It is a super-2 number, since 2×805488302 = 12976228028737800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80548837) 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, 224191 + ... + 224549.
It is an arithmetic number, because the mean of its divisors is an integer number (2724678).
Almost surely, 280548830 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80548830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108987120).
80548830 is an abundant number, since it is smaller than the sum of its proper divisors (137425410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80548830 is a wasteful number, since it uses less digits than its factorization.
80548830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 655 (or 646 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
The square root of 80548830 is about 8974.8999994429. The cubic root of 80548830 is about 431.8700419273.
The spelling of 80548830 in words is "eighty million, five hundred forty-eight thousand, eight hundred thirty".
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