Base | Representation |
---|---|
bin | 10001000111000… |
… | …01100011101010 |
3 | 101000002002110000 |
4 | 20203201203222 |
5 | 243220431333 |
6 | 22124203430 |
7 | 3361662306 |
oct | 1043414352 |
9 | 330062400 |
10 | 143530218 |
11 | 74023417 |
12 | 40099576 |
13 | 23975130 |
14 | 150c2d06 |
15 | c902713 |
hex | 88e18ea |
143530218 has 160 divisors (see below), whose sum is σ = 387858240. Its totient is φ = 39191040.
The previous prime is 143530213. The next prime is 143530229. The reversal of 143530218 is 812035341.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 143530191 and 143530200.
It is not an unprimeable number, because it can be changed into a prime (143530213) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 680133 + ... + 680343.
It is an arithmetic number, because the mean of its divisors is an integer number (2424114).
Almost surely, 2143530218 is an apocalyptic number.
143530218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 143530218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193929120).
143530218 is an abundant number, since it is smaller than the sum of its proper divisors (244328022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143530218 is a wasteful number, since it uses less digits than its factorization.
143530218 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 274 (or 265 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 143530218 is about 11980.4097592695. The cubic root of 143530218 is about 523.5776684624.
Adding to 143530218 its reverse (812035341), we get a palindrome (955565559).
The spelling of 143530218 in words is "one hundred forty-three million, five hundred thirty thousand, two hundred eighteen".
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