Base | Representation |
---|---|
bin | 111111110110001… |
… | …0110100001100111 |
3 | 12112022011210102211 |
4 | 1333230112201213 |
5 | 13341414124111 |
6 | 552325344251 |
7 | 104042346616 |
oct | 17754264147 |
9 | 5468153384 |
10 | 2142333031 |
11 | 9aa322573 |
12 | 4b9568087 |
13 | 281ac05a7 |
14 | 16474987d |
15 | c812a521 |
hex | 7fb16867 |
2142333031 has 2 divisors, whose sum is σ = 2142333032. Its totient is φ = 2142333030.
The previous prime is 2142333029. The next prime is 2142333043. The reversal of 2142333031 is 1303332412.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2142333031 - 21 = 2142333029 is a prime.
It is a super-2 number, since 2×21423330312 = 9179181631427293922, which contains 22 as substring.
Together with 2142333029, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 2142332993 and 2142333011.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2142333131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071166515 + 1071166516.
It is an arithmetic number, because the mean of its divisors is an integer number (1071166516).
Almost surely, 22142333031 is an apocalyptic number.
2142333031 is a deficient number, since it is larger than the sum of its proper divisors (1).
2142333031 is an equidigital number, since it uses as much as digits as its factorization.
2142333031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1296, while the sum is 22.
The square root of 2142333031 is about 46285.3435873604. The cubic root of 2142333031 is about 1289.1268716542.
Adding to 2142333031 its reverse (1303332412), we get a palindrome (3445665443).
The spelling of 2142333031 in words is "two billion, one hundred forty-two million, three hundred thirty-three thousand, thirty-one".
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