Base | Representation |
---|---|
bin | 10000111111101… |
… | …11001010011111 |
3 | 100221021022110200 |
4 | 20133313022133 |
5 | 242444221033 |
6 | 22051434543 |
7 | 3350553252 |
oct | 1037671237 |
9 | 327238420 |
10 | 142570143 |
11 | 73528071 |
12 | 3b8b5a53 |
13 | 236ca141 |
14 | 14d13099 |
15 | c7b3013 |
hex | 87f729f |
142570143 has 24 divisors (see below), whose sum is σ = 218535408. Its totient is φ = 89256192.
The previous prime is 142570121. The next prime is 142570157. The reversal of 142570143 is 341075241.
It is not a de Polignac number, because 142570143 - 25 = 142570111 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142570193) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99196 + ... + 100622.
It is an arithmetic number, because the mean of its divisors is an integer number (9105642).
Almost surely, 2142570143 is an apocalyptic number.
142570143 is a deficient number, since it is larger than the sum of its proper divisors (75965265).
142570143 is a wasteful number, since it uses less digits than its factorization.
142570143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2103 (or 2100 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 27.
The square root of 142570143 is about 11940.2739918312. The cubic root of 142570143 is about 522.4076504750.
The spelling of 142570143 in words is "one hundred forty-two million, five hundred seventy thousand, one hundred forty-three".
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