Base | Representation |
---|---|
bin | 1001100100100… |
… | …01100101001001 |
3 | 12121002001112100 |
4 | 10302101211021 |
5 | 131023204243 |
6 | 11544504013 |
7 | 1663303005 |
oct | 462214511 |
9 | 177061470 |
10 | 80288073 |
11 | 41358688 |
12 | 22a7b009 |
13 | 13831548 |
14 | a93d705 |
15 | 70ae0d3 |
hex | 4c91949 |
80288073 has 12 divisors (see below), whose sum is σ = 116712388. Its totient is φ = 53183520.
The previous prime is 80288063. The next prime is 80288081. The reversal of 80288073 is 37088208.
It can be written as a sum of positive squares in 2 ways, for example, as 26749584 + 53538489 = 5172^2 + 7317^2 .
It is not a de Polignac number, because 80288073 - 222 = 76093769 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80288023) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 26998 + ... + 29823.
Almost surely, 280288073 is an apocalyptic number.
It is an amenable number.
80288073 is a deficient number, since it is larger than the sum of its proper divisors (36424315).
80288073 is a wasteful number, since it uses less digits than its factorization.
80288073 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56984 (or 56981 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 80288073 is about 8960.3612092370. The cubic root of 80288073 is about 431.4035138406.
The spelling of 80288073 in words is "eighty million, two hundred eighty-eight thousand, seventy-three".
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