Base | Representation |
---|---|
bin | 10001000011001… |
… | …11101110101010 |
3 | 100222010201221020 |
4 | 20201213232222 |
5 | 243103444320 |
6 | 22105353310 |
7 | 3354513420 |
oct | 1041475652 |
9 | 328121836 |
10 | 143031210 |
11 | 73812513 |
12 | 3ba98836 |
13 | 2382bc6a |
14 | 14dd3110 |
15 | c854940 |
hex | 8867baa |
143031210 has 128 divisors (see below), whose sum is σ = 410517504. Its totient is φ = 31207680.
The previous prime is 143031169. The next prime is 143031211. The reversal of 143031210 is 12130341.
143031210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 143031210.
It is not an unprimeable number, because it can be changed into a prime (143031211) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 826684 + ... + 826856.
It is an arithmetic number, because the mean of its divisors is an integer number (3207168).
Almost surely, 2143031210 is an apocalyptic number.
143031210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 143031210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205258752).
143031210 is an abundant number, since it is smaller than the sum of its proper divisors (267486294).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143031210 is a wasteful number, since it uses less digits than its factorization.
143031210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 348.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 143031210 is about 11959.5656275636. The cubic root of 143031210 is about 522.9701940271.
Adding to 143031210 its reverse (12130341), we get a palindrome (155161551).
It can be divided in two parts, 1430 and 31210, that added together give a triangular number (32640 = T255).
The spelling of 143031210 in words is "one hundred forty-three million, thirty-one thousand, two hundred ten".
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