Base | Representation |
---|---|
bin | 1001100100101… |
… | …01101000101000 |
3 | 12121002220022102 |
4 | 10302111220220 |
5 | 131024222210 |
6 | 11545112532 |
7 | 1663402301 |
oct | 462255050 |
9 | 177086272 |
10 | 80304680 |
11 | 4136a105 |
12 | 22a88748 |
13 | 13838c81 |
14 | a9457a8 |
15 | 70b3ea5 |
hex | 4c95a28 |
80304680 has 16 divisors (see below), whose sum is σ = 180685620. Its totient is φ = 32121856.
The previous prime is 80304673. The next prime is 80304709. The reversal of 80304680 is 8640308.
It can be written as a sum of positive squares in 2 ways, for example, as 69189124 + 11115556 = 8318^2 + 3334^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003769 + ... + 1003848.
Almost surely, 280304680 is an apocalyptic number.
It is an amenable number.
80304680 is an abundant number, since it is smaller than the sum of its proper divisors (100380940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80304680 is a wasteful number, since it uses less digits than its factorization.
80304680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2007628 (or 2007624 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 29.
The square root of 80304680 is about 8961.2878538746. The cubic root of 80304680 is about 431.4332560093.
Adding to 80304680 its reverse (8640308), we get a palindrome (88944988).
The spelling of 80304680 in words is "eighty million, three hundred four thousand, six hundred eighty".
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