Base | Representation |
---|---|
bin | 111111100001001… |
… | …1000010001010011 |
3 | 12111112110210022000 |
4 | 1333002120101103 |
5 | 13331110031011 |
6 | 551253445043 |
7 | 103550002320 |
oct | 17702302123 |
9 | 5445423260 |
10 | 2131330131 |
11 | 9a4097967 |
12 | 4b5940783 |
13 | 27c73a3b8 |
14 | 1630c3b47 |
15 | c71a5356 |
hex | 7f098453 |
2131330131 has 32 divisors (see below), whose sum is σ = 3692536320. Its totient is φ = 1189575072.
The previous prime is 2131330109. The next prime is 2131330133. The reversal of 2131330131 is 1310331312.
It is a happy number.
2131330131 is a `hidden beast` number, since 21 + 313 + 301 + 31 = 666.
It is not a de Polignac number, because 2131330131 - 219 = 2130805843 is a prime.
It is a super-2 number, since 2×21313301312 = 9085136254616954322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2131330133) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123000 + ... + 139253.
It is an arithmetic number, because the mean of its divisors is an integer number (115391760).
Almost surely, 22131330131 is an apocalyptic number.
2131330131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2131330131 is a deficient number, since it is larger than the sum of its proper divisors (1561206189).
2131330131 is a wasteful number, since it uses less digits than its factorization.
2131330131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 262312 (or 262306 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
The square root of 2131330131 is about 46166.3311407783. The cubic root of 2131330131 is about 1286.9161219182.
Adding to 2131330131 its reverse (1310331312), we get a palindrome (3441661443).
The spelling of 2131330131 in words is "two billion, one hundred thirty-one million, three hundred thirty thousand, one hundred thirty-one".
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