Base | Representation |
---|---|
bin | 10000101100100… |
… | …101101001111110 |
3 | 201112002202221002 |
4 | 100230211221332 |
5 | 1033202432110 |
6 | 43444010302 |
7 | 6641005064 |
oct | 2054455176 |
9 | 645082832 |
10 | 280124030 |
11 | 13413936a |
12 | 79990992 |
13 | 4605bc84 |
14 | 292bc034 |
15 | 198d4aa5 |
hex | 10b25a7e |
280124030 has 32 divisors (see below), whose sum is σ = 531964800. Its totient is φ = 105911712.
The previous prime is 280123999. The next prime is 280124041. The reversal of 280124030 is 30421082.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 280123993 and 280124011.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97961 + ... + 100779.
It is an arithmetic number, because the mean of its divisors is an integer number (16623900).
Almost surely, 2280124030 is an apocalyptic number.
280124030 is a deficient number, since it is larger than the sum of its proper divisors (251840770).
280124030 is a wasteful number, since it uses less digits than its factorization.
280124030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3368.
The product of its (nonzero) digits is 384, while the sum is 20.
The square root of 280124030 is about 16736.9062254647. The cubic root of 280124030 is about 654.3098454816.
The spelling of 280124030 in words is "two hundred eighty million, one hundred twenty-four thousand, thirty".
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