Base | Representation |
---|---|
bin | 11010010000111… |
… | …10010100010111 |
3 | 120100120200021111 |
4 | 31020132110113 |
5 | 422400401033 |
6 | 33510155451 |
7 | 5313506233 |
oct | 1510362427 |
9 | 510520244 |
10 | 220325143 |
11 | 1034055a5 |
12 | 61952b87 |
13 | 3685270c |
14 | 213935c3 |
15 | 145217cd |
hex | d21e517 |
220325143 has 4 divisors (see below), whose sum is σ = 225012960. Its totient is φ = 215637328.
The previous prime is 220325111. The next prime is 220325173. The reversal of 220325143 is 341523022.
220325143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341523022 = 2 ⋅170761511.
It is a cyclic number.
It is not a de Polignac number, because 220325143 - 25 = 220325111 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 (220325173) 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, 2343838 + ... + 2343931.
It is an arithmetic number, because the mean of its divisors is an integer number (56253240).
Almost surely, 2220325143 is an apocalyptic number.
220325143 is a deficient number, since it is larger than the sum of its proper divisors (4687817).
220325143 is an equidigital number, since it uses as much as digits as its factorization.
220325143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4687816.
The product of its (nonzero) digits is 1440, while the sum is 22.
The square root of 220325143 is about 14843.3534957569. The cubic root of 220325143 is about 603.9783252825.
Adding to 220325143 its reverse (341523022), we get a palindrome (561848165).
The spelling of 220325143 in words is "two hundred twenty million, three hundred twenty-five thousand, one hundred forty-three".
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