Base | Representation |
---|---|
bin | 1001100110000… |
… | …10001011011000 |
3 | 12121110011120202 |
4 | 10303002023120 |
5 | 131101042003 |
6 | 11553041332 |
7 | 1665062231 |
oct | 463021330 |
9 | 177404522 |
10 | 80487128 |
11 | 41484197 |
12 | 22b56248 |
13 | 138a1027 |
14 | a992088 |
15 | 70ed088 |
hex | 4cc22d8 |
80487128 has 16 divisors (see below), whose sum is σ = 151061760. Its totient is φ = 40204000.
The previous prime is 80487109. The next prime is 80487131. The reversal of 80487128 is 82178408.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 80487091 and 80487100.
It is a congruent number.
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, 4838 + ... + 13578.
It is an arithmetic number, because the mean of its divisors is an integer number (9441360).
Almost surely, 280487128 is an apocalyptic number.
It is an amenable number.
80487128 is a deficient number, since it is larger than the sum of its proper divisors (70574632).
80487128 is a wasteful number, since it uses less digits than its factorization.
80487128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9898 (or 9894 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 38.
The square root of 80487128 is about 8971.4618652703. The cubic root of 80487128 is about 431.7597400879.
The spelling of 80487128 in words is "eighty million, four hundred eighty-seven thousand, one hundred twenty-eight".
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