Base | Representation |
---|---|
bin | 11010010010101001… |
… | …011000001001111110 |
3 | 2200212101221220011000 |
4 | 122102221120021332 |
5 | 430303402433113 |
6 | 20545125311130 |
7 | 2016366044655 |
oct | 322251301176 |
9 | 80771856130 |
10 | 28230124158 |
11 | 10a77195125 |
12 | 557a2654a6 |
13 | 287b7c16a2 |
14 | 151b37419c |
15 | b03571373 |
hex | 692a5827e |
28230124158 has 64 divisors (see below), whose sum is σ = 63005184000. Its totient is φ = 9369408672.
The previous prime is 28230124151. The next prime is 28230124199. The reversal of 28230124158 is 85142103282.
It is a happy number.
28230124158 is a `hidden beast` number, since 2 + 8 + 230 + 1 + 2 + 415 + 8 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28230124151) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16048083 + ... + 16049841.
It is an arithmetic number, because the mean of its divisors is an integer number (984456000).
Almost surely, 228230124158 is an apocalyptic number.
28230124158 is an abundant number, since it is smaller than the sum of its proper divisors (34775059842).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28230124158 is a wasteful number, since it uses less digits than its factorization.
28230124158 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2886 (or 2880 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
The spelling of 28230124158 in words is "twenty-eight billion, two hundred thirty million, one hundred twenty-four thousand, one hundred fifty-eight".
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