Base | Representation |
---|---|
bin | 10001101001001010… |
… | …000110011100100011 |
3 | 1210220020201020122102 |
4 | 101221022012130203 |
5 | 302244143442312 |
6 | 12411450201015 |
7 | 1240311255164 |
oct | 215112063443 |
9 | 53806636572 |
10 | 18944124707 |
11 | 8041512312 |
12 | 380842316b |
13 | 1a2ba06061 |
14 | cb9d9176b |
15 | 75d1edec2 |
hex | 469286723 |
18944124707 has 8 divisors (see below), whose sum is σ = 19573865472. Its totient is φ = 18315549000.
The previous prime is 18944124697. The next prime is 18944124733. The reversal of 18944124707 is 70742144981.
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 18944124707 - 222 = 18939930403 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18944120707) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258143 + ... + 323304.
It is an arithmetic number, because the mean of its divisors is an integer number (2446733184).
Almost surely, 218944124707 is an apocalyptic number.
18944124707 is a deficient number, since it is larger than the sum of its proper divisors (629740765).
18944124707 is a wasteful number, since it uses less digits than its factorization.
18944124707 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 582529.
The product of its (nonzero) digits is 451584, while the sum is 47.
The spelling of 18944124707 in words is "eighteen billion, nine hundred forty-four million, one hundred twenty-four thousand, seven hundred seven".
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