Base | Representation |
---|---|
bin | 1001100011111… |
… | …00001101010010 |
3 | 12120220121110000 |
4 | 10301330031102 |
5 | 131012404110 |
6 | 11542550430 |
7 | 1662456534 |
oct | 461741522 |
9 | 176817400 |
10 | 80200530 |
11 | 412a8933 |
12 | 22a38416 |
13 | 13800747 |
14 | a919854 |
15 | 70931c0 |
hex | 4c7c352 |
80200530 has 40 divisors (see below), whose sum is σ = 215652492. Its totient is φ = 21386592.
The previous prime is 80200499. The next prime is 80200531. The reversal of 80200530 is 3500208.
It can be written as a sum of positive squares in 2 ways, for example, as 64304361 + 15896169 = 8019^2 + 3987^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (80200531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48697 + ... + 50316.
Almost surely, 280200530 is an apocalyptic number.
80200530 is an abundant number, since it is smaller than the sum of its proper divisors (135451962).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80200530 is a wasteful number, since it uses less digits than its factorization.
80200530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 99032 (or 99023 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 80200530 is about 8955.4748617815. The cubic root of 80200530 is about 431.2466615999.
Adding to 80200530 its reverse (3500208), we get a palindrome (83700738).
The spelling of 80200530 in words is "eighty million, two hundred thousand, five hundred thirty".
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