Base | Representation |
---|---|
bin | 1111100001100… |
… | …10101000101100 |
3 | 100002001102010000 |
4 | 13300302220230 |
5 | 231314341303 |
6 | 20531144300 |
7 | 3140641500 |
oct | 760625054 |
9 | 302042100 |
10 | 130230828 |
11 | 6756a392 |
12 | 37745090 |
13 | 20c99880 |
14 | 13420300 |
15 | b676da3 |
hex | 7c32a2c |
130230828 has 180 divisors, whose sum is σ = 427172592. Its totient is φ = 34292160.
The previous prime is 130230817. The next prime is 130230839. The reversal of 130230828 is 828032031.
It is an interprime number because it is at equal distance from previous prime (130230817) and next prime (130230839).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 206073 + ... + 206703.
Almost surely, 2130230828 is an apocalyptic number.
130230828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 130230828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213586296).
130230828 is an abundant number, since it is smaller than the sum of its proper divisors (296941764).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130230828 is a wasteful number, since it uses less digits than its factorization.
130230828 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 674 (or 656 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The square root of 130230828 is about 11411.8722390325. The cubic root of 130230828 is about 506.8793522665.
Adding to 130230828 its reverse (828032031), we get a palindrome (958262859).
The spelling of 130230828 in words is "one hundred thirty million, two hundred thirty thousand, eight hundred twenty-eight".
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