Base | Representation |
---|---|
bin | 10000111100010… |
… | …10101010011111 |
3 | 100220102201211211 |
4 | 20132022222133 |
5 | 242341010402 |
6 | 22034125251 |
7 | 3344022502 |
oct | 1036125237 |
9 | 326381754 |
10 | 142125727 |
11 | 73254187 |
12 | 3b720827 |
13 | 235a2a83 |
14 | 14c39139 |
15 | c7264d7 |
hex | 878aa9f |
142125727 has 4 divisors (see below), whose sum is σ = 142184160. Its totient is φ = 142067296.
The previous prime is 142125691. The next prime is 142125733. The reversal of 142125727 is 727521241.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 142125727 - 211 = 142123679 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142125127) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25402 + ... + 30487.
It is an arithmetic number, because the mean of its divisors is an integer number (35546040).
Almost surely, 2142125727 is an apocalyptic number.
142125727 is a deficient number, since it is larger than the sum of its proper divisors (58433).
142125727 is an equidigital number, since it uses as much as digits as its factorization.
142125727 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58432.
The product of its digits is 7840, while the sum is 31.
The square root of 142125727 is about 11921.6495083524. The cubic root of 142125727 is about 521.8642735649.
Adding to 142125727 its reverse (727521241), we get a palindrome (869646968).
The spelling of 142125727 in words is "one hundred forty-two million, one hundred twenty-five thousand, seven hundred twenty-seven".
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