Base | Representation |
---|---|
bin | 1001100110001… |
… | …11100001111010 |
3 | 12121111021122200 |
4 | 10303013201322 |
5 | 131102242200 |
6 | 11553331030 |
7 | 1665213156 |
oct | 463074172 |
9 | 177437580 |
10 | 80509050 |
11 | 41499706 |
12 | 22b66a76 |
13 | 138aacbb |
14 | a99a066 |
15 | 7104800 |
hex | 4cc787a |
80509050 has 36 divisors (see below), whose sum is σ = 216302190. Its totient is φ = 21468960.
The previous prime is 80509049. The next prime is 80509069. The reversal of 80509050 is 5090508.
It can be written as a sum of positive squares in 3 ways, for example, as 66243321 + 14265729 = 8139^2 + 3777^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 89005 + ... + 89904.
Almost surely, 280509050 is an apocalyptic number.
80509050 is an abundant number, since it is smaller than the sum of its proper divisors (135793140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80509050 is a wasteful number, since it uses less digits than its factorization.
80509050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 178927 (or 178919 counting only the distinct ones).
The product of its (nonzero) digits is 1800, while the sum is 27.
The square root of 80509050 is about 8972.6835450717. The cubic root of 80509050 is about 431.7989354974.
Adding to 80509050 its reverse (5090508), we get a palindrome (85599558).
The spelling of 80509050 in words is "eighty million, five hundred nine thousand, fifty".
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