Base | Representation |
---|---|
bin | 1001100110000… |
… | …00011111111011 |
3 | 12121102211011001 |
4 | 10303000133323 |
5 | 131100332001 |
6 | 11552545431 |
7 | 1665033205 |
oct | 463003773 |
9 | 177384131 |
10 | 80480251 |
11 | 4147a005 |
12 | 22b52277 |
13 | 1389ab67 |
14 | a98d775 |
15 | 70eb001 |
hex | 4cc07fb |
80480251 has 4 divisors (see below), whose sum is σ = 80500000. Its totient is φ = 80460504.
The previous prime is 80480233. The next prime is 80480311. The reversal of 80480251 is 15208408.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 80480251 - 213 = 80472059 is a prime.
It is a super-3 number, since 3×804802513 (a number of 25 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80480201) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251 + ... + 12748.
It is an arithmetic number, because the mean of its divisors is an integer number (20125000).
Almost surely, 280480251 is an apocalyptic number.
80480251 is a deficient number, since it is larger than the sum of its proper divisors (19749).
80480251 is a wasteful number, since it uses less digits than its factorization.
80480251 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19748.
The product of its (nonzero) digits is 2560, while the sum is 28.
The square root of 80480251 is about 8971.0785862125. The cubic root of 80480251 is about 431.7474428988.
Adding to 80480251 its reverse (15208408), we get a palindrome (95688659).
The spelling of 80480251 in words is "eighty million, four hundred eighty thousand, two hundred fifty-one".
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