Base | Representation |
---|---|
bin | 10000110100000111… |
… | …000110001010111100 |
3 | 1201121020001120120221 |
4 | 100310013012022330 |
5 | 243433330112300 |
6 | 12143254551124 |
7 | 1206253461244 |
oct | 206407061274 |
9 | 51536046527 |
10 | 18054144700 |
11 | 7725104149 |
12 | 35ba3684a4 |
13 | 191950a377 |
14 | c33ac2b24 |
15 | 70a00131a |
hex | 4341c62bc |
18054144700 has 36 divisors (see below), whose sum is σ = 39192382152. Its totient is φ = 7218913600.
The previous prime is 18054144671. The next prime is 18054144701. The reversal of 18054144700 is 744145081.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18054144701) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241167 + ... + 307033.
It is an arithmetic number, because the mean of its divisors is an integer number (1088677282).
Almost surely, 218054144700 is an apocalyptic number.
18054144700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18054144700 is an abundant number, since it is smaller than the sum of its proper divisors (21138237452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18054144700 is a wasteful number, since it uses less digits than its factorization.
18054144700 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 68622 (or 68615 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 34.
Adding to 18054144700 its reverse (744145081), we get a palindrome (18798289781).
The spelling of 18054144700 in words is "eighteen billion, fifty-four million, one hundred forty-four thousand, seven hundred".
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