Base | Representation |
---|---|
bin | 10000111100011… |
… | …00000001110001 |
3 | 100220110000111201 |
4 | 20132030001301 |
5 | 242341200223 |
6 | 22034211201 |
7 | 3344045002 |
oct | 1036140161 |
9 | 326400451 |
10 | 142131313 |
11 | 732583a5 |
12 | 3b723b01 |
13 | 235a548c |
14 | 14c3b1a9 |
15 | c727ead |
hex | 878c071 |
142131313 has 8 divisors (see below), whose sum is σ = 144207360. Its totient is φ = 140069520.
The previous prime is 142131299. The next prime is 142131347. The reversal of 142131313 is 313131241.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 142131313 - 217 = 142000241 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (142134313) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17406 + ... + 24232.
It is an arithmetic number, because the mean of its divisors is an integer number (18025920).
Almost surely, 2142131313 is an apocalyptic number.
It is an amenable number.
142131313 is a deficient number, since it is larger than the sum of its proper divisors (2076047).
142131313 is a wasteful number, since it uses less digits than its factorization.
142131313 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7127.
The product of its digits is 216, while the sum is 19.
The square root of 142131313 is about 11921.8837857110. The cubic root of 142131313 is about 521.8711104590.
Adding to 142131313 its reverse (313131241), we get a palindrome (455262554).
The spelling of 142131313 in words is "one hundred forty-two million, one hundred thirty-one thousand, three hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •