Base | Representation |
---|---|
bin | 10000110000111001… |
… | …110000000111110100 |
3 | 1201110110202201221110 |
4 | 100300321300013310 |
5 | 243331040033433 |
6 | 12134053115020 |
7 | 1205031103044 |
oct | 206071600764 |
9 | 51413681843 |
10 | 18000314868 |
11 | 76a7787a88 |
12 | 35a4328a70 |
13 | 190b3109b3 |
14 | c2a8ad724 |
15 | 70541b963 |
hex | 430e701f4 |
18000314868 has 24 divisors (see below), whose sum is σ = 42009039072. Its totient is φ = 5998918624.
The previous prime is 18000314861. The next prime is 18000314879. The reversal of 18000314868 is 86841300081.
It is a super-2 number, since 2×180003148682 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18000314861) 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, 83955 + ... + 207482.
It is an arithmetic number, because the mean of its divisors is an integer number (1750376628).
Almost surely, 218000314868 is an apocalyptic number.
It is an amenable number.
18000314868 is an abundant number, since it is smaller than the sum of its proper divisors (24008724204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18000314868 is a wasteful number, since it uses less digits than its factorization.
18000314868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 296591 (or 296589 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 39.
The spelling of 18000314868 in words is "eighteen billion, three hundred fourteen thousand, eight hundred sixty-eight".
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