Base | Representation |
---|---|
bin | 1001100010100… |
… | …10001101001010 |
3 | 12120120212110011 |
4 | 10301102031022 |
5 | 130441402430 |
6 | 11535142134 |
7 | 1661142133 |
oct | 461221512 |
9 | 176525404 |
10 | 80028490 |
11 | 411a0653 |
12 | 2297494a |
13 | 13770349 |
14 | a8b2c8a |
15 | 705c22a |
hex | 4c5234a |
80028490 has 16 divisors (see below), whose sum is σ = 145008000. Its totient is φ = 31798800.
The previous prime is 80028479. The next prime is 80028491. The reversal of 80028490 is 9482008.
80028490 is a modest number, since divided by 28490 gives 80 as remainder.
It is not an unprimeable number, because it can be changed into a prime (80028491) 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 7 ways as a sum of consecutive naturals, for example, 24990 + ... + 28009.
It is an arithmetic number, because the mean of its divisors is an integer number (9063000).
Almost surely, 280028490 is an apocalyptic number.
80028490 is a deficient number, since it is larger than the sum of its proper divisors (64979510).
80028490 is a wasteful number, since it uses less digits than its factorization.
80028490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53157.
The product of its (nonzero) digits is 4608, while the sum is 31.
The square root of 80028490 is about 8945.8644076467. The cubic root of 80028490 is about 430.9380818059.
The spelling of 80028490 in words is "eighty million, twenty-eight thousand, four hundred ninety".
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