Base | Representation |
---|---|
bin | 111111100100011… |
… | …0111100011011011 |
3 | 12111122200012122000 |
4 | 1333020313203123 |
5 | 13332023444011 |
6 | 551354132043 |
7 | 103600315440 |
oct | 17710674333 |
9 | 5448605560 |
10 | 2133031131 |
11 | 9a5049950 |
12 | 4b6421023 |
13 | 27cbb46ca |
14 | 1634079c7 |
15 | c73de356 |
hex | 7f2378db |
2133031131 has 64 divisors (see below), whose sum is σ = 3953664000. Its totient is φ = 1104170400.
The previous prime is 2133031129. The next prime is 2133031141. The reversal of 2133031131 is 1311303312.
It is a happy number.
2133031131 is a `hidden beast` number, since 21 + 330 + 311 + 3 + 1 = 666.
It is not a de Polignac number, because 2133031131 - 21 = 2133031129 is a prime.
It is a super-2 number, since 2×21330311312 = 9099643611630278322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2133031111) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 644920 + ... + 648218.
It is an arithmetic number, because the mean of its divisors is an integer number (61776000).
Almost surely, 22133031131 is an apocalyptic number.
2133031131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2133031131 is a deficient number, since it is larger than the sum of its proper divisors (1820632869).
2133031131 is a wasteful number, since it uses less digits than its factorization.
2133031131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3637 (or 3631 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
The square root of 2133031131 is about 46184.7499830842. The cubic root of 2133031131 is about 1287.2583905318.
Adding to 2133031131 its reverse (1311303312), we get a palindrome (3444334443).
The spelling of 2133031131 in words is "two billion, one hundred thirty-three million, thirty-one thousand, one hundred thirty-one".
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