Base | Representation |
---|---|
bin | 10001000100111… |
… | …00110111100100 |
3 | 100222112210111122 |
4 | 20202130313210 |
5 | 243132430433 |
6 | 22114153112 |
7 | 3356411120 |
oct | 1042346744 |
9 | 328483448 |
10 | 143248868 |
11 | 73950aa4 |
12 | 3bb82798 |
13 | 238a7059 |
14 | 1504c580 |
15 | c899198 |
hex | 889cde4 |
143248868 has 48 divisors (see below), whose sum is σ = 305512704. Its totient is φ = 57369600.
The previous prime is 143248843. The next prime is 143248879. The reversal of 143248868 is 868842341.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70880 + ... + 72872.
It is an arithmetic number, because the mean of its divisors is an integer number (6364848).
Almost surely, 2143248868 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 143248868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152756352).
143248868 is an abundant number, since it is smaller than the sum of its proper divisors (162263836).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143248868 is a wasteful number, since it uses less digits than its factorization.
143248868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2172 (or 2170 counting only the distinct ones).
The product of its digits is 294912, while the sum is 44.
The square root of 143248868 is about 11968.6619135140. The cubic root of 143248868 is about 523.2353365220.
The spelling of 143248868 in words is "one hundred forty-three million, two hundred forty-eight thousand, eight hundred sixty-eight".
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