Base | Representation |
---|---|
bin | 111111100000111… |
… | …1001010000111010 |
3 | 12111112020100002021 |
4 | 1333001321100322 |
5 | 13331042000010 |
6 | 551251025054 |
7 | 103545633130 |
oct | 17701712072 |
9 | 5445210067 |
10 | 2131203130 |
11 | 9a4010501 |
12 | 4b589b18a |
13 | 27c6c4654 |
14 | 16308d750 |
15 | c717c8da |
hex | 7f07943a |
2131203130 has 64 divisors (see below), whose sum is σ = 4666159872. Its totient is φ = 684149760.
The previous prime is 2131203091. The next prime is 2131203149. The reversal of 2131203130 is 313021312.
It is an unprimeable number.
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, 229885 + ... + 238975.
It is an arithmetic number, because the mean of its divisors is an integer number (72908748).
Almost surely, 22131203130 is an apocalyptic number.
2131203130 is an abundant number, since it is smaller than the sum of its proper divisors (2534956742).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2131203130 is a wasteful number, since it uses less digits than its factorization.
2131203130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9319.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 2131203130 is about 46164.9556481970. The cubic root of 2131203130 is about 1286.8905599653.
Adding to 2131203130 its reverse (313021312), we get a palindrome (2444224442).
The spelling of 2131203130 in words is "two billion, one hundred thirty-one million, two hundred three thousand, one hundred thirty".
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