Base | Representation |
---|---|
bin | 11011111110000111… |
… | …101110000001001111 |
3 | 2212112001211200021112 |
4 | 123332013232001033 |
5 | 443002002141033 |
6 | 21444100322235 |
7 | 2112152220614 |
oct | 337607560117 |
9 | 85461750245 |
10 | 30033240143 |
11 | 11811a87925 |
12 | 59a20a337b |
13 | 2aa8232b1a |
14 | 164ca1c50b |
15 | bab9e2c48 |
hex | 6fe1ee04f |
30033240143 has 4 divisors (see below), whose sum is σ = 30034100400. Its totient is φ = 30032379888.
The previous prime is 30033240137. The next prime is 30033240157. The reversal of 30033240143 is 34104233003.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34104233003 = 5413 ⋅6300431.
It is a cyclic number.
It is not a de Polignac number, because 30033240143 - 216 = 30033174607 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30033240103) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375443 + ... + 448356.
It is an arithmetic number, because the mean of its divisors is an integer number (7508525100).
Almost surely, 230033240143 is an apocalyptic number.
30033240143 is a deficient number, since it is larger than the sum of its proper divisors (860257).
30033240143 is an equidigital number, since it uses as much as digits as its factorization.
30033240143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 860256.
The product of its (nonzero) digits is 2592, while the sum is 23.
Adding to 30033240143 its reverse (34104233003), we get a palindrome (64137473146).
The spelling of 30033240143 in words is "thirty billion, thirty-three million, two hundred forty thousand, one hundred forty-three".
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