Base | Representation |
---|---|
bin | 111111100011001… |
… | …0010100110011001 |
3 | 12111121101212210221 |
4 | 1333012102212121 |
5 | 13331340333411 |
6 | 551331440041 |
7 | 103561502554 |
oct | 17706224631 |
9 | 5447355727 |
10 | 2132355481 |
11 | 9a4728263 |
12 | 4b6156021 |
13 | 27ca09009 |
14 | 1632ad69b |
15 | c7309071 |
hex | 7f192999 |
2132355481 has 2 divisors, whose sum is σ = 2132355482. Its totient is φ = 2132355480.
The previous prime is 2132355479. The next prime is 2132355487. The reversal of 2132355481 is 1845532312.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2128899600 + 3455881 = 46140^2 + 1859^2 .
It is a cyclic number.
It is not a de Polignac number, because 2132355481 - 21 = 2132355479 is a prime.
It is a super-2 number, since 2×21323554812 = 9093879794701482722, which contains 22 as substring.
Together with 2132355479, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (2132355487) by changing a digit.
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 as a sum of consecutive naturals, namely, 1066177740 + 1066177741.
It is an arithmetic number, because the mean of its divisors is an integer number (1066177741).
Almost surely, 22132355481 is an apocalyptic number.
It is an amenable number.
2132355481 is a deficient number, since it is larger than the sum of its proper divisors (1).
2132355481 is an equidigital number, since it uses as much as digits as its factorization.
2132355481 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 28800, while the sum is 34.
The square root of 2132355481 is about 46177.4347598478. The cubic root of 2132355481 is about 1287.1224606546.
Adding to 2132355481 its reverse (1845532312), we get a palindrome (3977887793).
The spelling of 2132355481 in words is "two billion, one hundred thirty-two million, three hundred fifty-five thousand, four hundred eighty-one".
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