Base | Representation |
---|---|
bin | 10001000011111… |
… | …11111111111100 |
3 | 100222022210022002 |
4 | 20201333333330 |
5 | 243120134440 |
6 | 22111441432 |
7 | 3355406303 |
oct | 1041777774 |
9 | 328283262 |
10 | 143130620 |
11 | 73880176 |
12 | 3bb26278 |
13 | 23865299 |
14 | 1501b43a |
15 | c874115 |
hex | 887fffc |
143130620 has 48 divisors (see below), whose sum is σ = 306848640. Its totient is φ = 56070144.
The previous prime is 143130607. The next prime is 143130643. The reversal of 143130620 is 26031341.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 143130592 and 143130601.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247772 + ... + 248348.
It is an arithmetic number, because the mean of its divisors is an integer number (6392680).
Almost surely, 2143130620 is an apocalyptic number.
143130620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
143130620 is an abundant number, since it is smaller than the sum of its proper divisors (163718020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143130620 is a wasteful number, since it uses less digits than its factorization.
143130620 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 822 (or 820 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 20.
The square root of 143130620 is about 11963.7209930690. The cubic root of 143130620 is about 523.0913247632.
Adding to 143130620 its reverse (26031341), we get a palindrome (169161961).
The spelling of 143130620 in words is "one hundred forty-three million, one hundred thirty thousand, six hundred twenty".
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