Base | Representation |
---|---|
bin | 111111110111101… |
… | …1001100110110111 |
3 | 12112100200101112111 |
4 | 1333233121212313 |
5 | 13342120211322 |
6 | 552354431451 |
7 | 104052215335 |
oct | 17757314667 |
9 | 5470611474 |
10 | 2143132087 |
11 | 9aa818948 |
12 | 4b9892587 |
13 | 2820101c5 |
14 | 1648b6b55 |
15 | c8237177 |
hex | 7fbd99b7 |
2143132087 has 2 divisors, whose sum is σ = 2143132088. Its totient is φ = 2143132086.
The previous prime is 2143132003. The next prime is 2143132109. The reversal of 2143132087 is 7802313412.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2143132087 - 219 = 2142607799 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2143132487) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071566043 + 1071566044.
It is an arithmetic number, because the mean of its divisors is an integer number (1071566044).
Almost surely, 22143132087 is an apocalyptic number.
2143132087 is a deficient number, since it is larger than the sum of its proper divisors (1).
2143132087 is an equidigital number, since it uses as much as digits as its factorization.
2143132087 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8064, while the sum is 31.
The square root of 2143132087 is about 46293.9746295347. The cubic root of 2143132087 is about 1289.2871263088.
Adding to 2143132087 its reverse (7802313412), we get a palindrome (9945445499).
The spelling of 2143132087 in words is "two billion, one hundred forty-three million, one hundred thirty-two thousand, eighty-seven".
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