Base | Representation |
---|---|
bin | 10000111001100011… |
… | …010011101011011110 |
3 | 1201211120211011012002 |
4 | 100321203103223132 |
5 | 244130212114032 |
6 | 12200315242302 |
7 | 1211442402014 |
oct | 207143235336 |
9 | 51746734162 |
10 | 18145426142 |
11 | 7771690258 |
12 | 3624a49392 |
13 | 19323ba65c |
14 | c41c848b4 |
15 | 713032862 |
hex | 4398d3ade |
18145426142 has 8 divisors (see below), whose sum is σ = 27416812176. Its totient is φ = 9006488752.
The previous prime is 18145426141. The next prime is 18145426163. The reversal of 18145426142 is 24162454181.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×181454261423 (a number of 32 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 18145426096 and 18145426105.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18145426141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33111818 + ... + 33112365.
It is an arithmetic number, because the mean of its divisors is an integer number (3427101522).
Almost surely, 218145426142 is an apocalyptic number.
18145426142 is a deficient number, since it is larger than the sum of its proper divisors (9271386034).
18145426142 is a wasteful number, since it uses less digits than its factorization.
18145426142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66224322.
The product of its digits is 61440, while the sum is 38.
The spelling of 18145426142 in words is "eighteen billion, one hundred forty-five million, four hundred twenty-six thousand, one hundred forty-two".
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