Base | Representation |
---|---|
bin | 11000000110110111… |
… | …00111001010010110 |
3 | 1020101222112200122112 |
4 | 30003123213022112 |
5 | 203001233044310 |
6 | 5540134031022 |
7 | 635504124011 |
oct | 140333471226 |
9 | 36358480575 |
10 | 12942471830 |
11 | 5541762712 |
12 | 26124a8472 |
13 | 12b34abb72 |
14 | 8aac72378 |
15 | 50b38b705 |
hex | 3036e7296 |
12942471830 has 8 divisors (see below), whose sum is σ = 23296449312. Its totient is φ = 5176988728.
The previous prime is 12942471791. The next prime is 12942471833. The reversal of 12942471830 is 3817424921.
12942471830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12942471833) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647123582 + ... + 647123601.
It is an arithmetic number, because the mean of its divisors is an integer number (2912056164).
Almost surely, 212942471830 is an apocalyptic number.
12942471830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12942471830 is a deficient number, since it is larger than the sum of its proper divisors (10353977482).
12942471830 is a wasteful number, since it uses less digits than its factorization.
12942471830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1294247190.
The product of its (nonzero) digits is 96768, while the sum is 41.
The spelling of 12942471830 in words is "twelve billion, nine hundred forty-two million, four hundred seventy-one thousand, eight hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •