Base | Representation |
---|---|
bin | 1111100001010… |
… | …11000111011100 |
3 | 100001222211212021 |
4 | 13300223013130 |
5 | 231312400103 |
6 | 20530345524 |
7 | 3140452630 |
oct | 760530734 |
9 | 301884767 |
10 | 130200028 |
11 | 67549232 |
12 | 3772b2a4 |
13 | 20c8884a |
14 | 13412dc0 |
15 | b66cbbd |
hex | 7c2b1dc |
130200028 has 24 divisors (see below), whose sum is σ = 264290432. Its totient is φ = 54966384.
The previous prime is 130200023. The next prime is 130200029. The reversal of 130200028 is 820002031.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 130199984 and 130200020.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130200023) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32826 + ... + 36577.
Almost surely, 2130200028 is an apocalyptic number.
It is an amenable number.
130200028 is an abundant number, since it is smaller than the sum of its proper divisors (134090404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130200028 is a wasteful number, since it uses less digits than its factorization.
130200028 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 69481 (or 69479 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 130200028 is about 11410.5226874145. The cubic root of 130200028 is about 506.8393895961.
Adding to 130200028 its reverse (820002031), we get a palindrome (950202059).
The spelling of 130200028 in words is "one hundred thirty million, two hundred thousand, twenty-eight".
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