Base | Representation |
---|---|
bin | 1010000010110… |
… | …1111000011011 |
3 | 2221021110211100 |
4 | 2200231320123 |
5 | 41241142341 |
6 | 4103002443 |
7 | 1021051551 |
oct | 240557033 |
9 | 87243740 |
10 | 42130971 |
11 | 21866693 |
12 | 12139423 |
13 | 896178c |
14 | 5849bd1 |
15 | 3a733b6 |
hex | 282de1b |
42130971 has 12 divisors (see below), whose sum is σ = 61176960. Its totient is φ = 27939120.
The previous prime is 42130951. The next prime is 42130993. The reversal of 42130971 is 17903124.
42130971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 42130971 - 213 = 42122779 is a prime.
It is not an unprimeable number, because it can be changed into a prime (42130951) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 10536 + ... + 13973.
It is an arithmetic number, because the mean of its divisors is an integer number (5098080).
Almost surely, 242130971 is an apocalyptic number.
42130971 is a deficient number, since it is larger than the sum of its proper divisors (19045989).
42130971 is a wasteful number, since it uses less digits than its factorization.
42130971 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24706 (or 24703 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 42130971 is about 6490.8374652274. The cubic root of 42130971 is about 347.9636059840.
The spelling of 42130971 in words is "forty-two million, one hundred thirty thousand, nine hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.085 sec. • engine limits •