Base | Representation |
---|---|
bin | 10111001011001… |
… | …100110101100010 |
3 | 1000002121200222021 |
4 | 113023030311202 |
5 | 1244013442010 |
6 | 102325332054 |
7 | 12430564030 |
oct | 2713146542 |
9 | 1002550867 |
10 | 388812130 |
11 | 18a524343 |
12 | aa26702a |
13 | 62725165 |
14 | 398d1550 |
15 | 242038da |
hex | 172ccd62 |
388812130 has 16 divisors (see below), whose sum is σ = 799842240. Its totient is φ = 133306992.
The previous prime is 388812107. The next prime is 388812133. The reversal of 388812130 is 31218883.
It is not an unprimeable number, because it can be changed into a prime (388812133) 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, 2777160 + ... + 2777299.
It is an arithmetic number, because the mean of its divisors is an integer number (49990140).
Almost surely, 2388812130 is an apocalyptic number.
388812130 is an abundant number, since it is smaller than the sum of its proper divisors (411030110).
388812130 is a wasteful number, since it uses less digits than its factorization.
388812130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5554473.
The product of its (nonzero) digits is 9216, while the sum is 34.
The square root of 388812130 is about 19718.3196545750. The cubic root of 388812130 is about 729.8718296276.
The spelling of 388812130 in words is "three hundred eighty-eight million, eight hundred twelve thousand, one hundred thirty".
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