Base | Representation |
---|---|
bin | 10001001000100011… |
… | …010110101100000000 |
3 | 1202111010101100022000 |
4 | 101020203112230000 |
5 | 300134124043304 |
6 | 12241305344000 |
7 | 1220616512310 |
oct | 211043265400 |
9 | 52433340260 |
10 | 18397096704 |
11 | 7890755058 |
12 | 3695198000 |
13 | 197259654c |
14 | c67477440 |
15 | 72a196939 |
hex | 4488d6b00 |
18397096704 has 144 divisors (see below), whose sum is σ = 62175536640. Its totient is φ = 5256299520.
The previous prime is 18397096691. The next prime is 18397096709. The reversal of 18397096704 is 40769079381.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (18397096709) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141732 + ... + 238499.
It is an arithmetic number, because the mean of its divisors is an integer number (431774560).
Almost surely, 218397096704 is an apocalyptic number.
18397096704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
18397096704 is an abundant number, since it is smaller than the sum of its proper divisors (43778439936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18397096704 is an equidigital number, since it uses as much as digits as its factorization.
18397096704 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 380263 (or 380243 counting only the distinct ones).
The product of its (nonzero) digits is 2286144, while the sum is 54.
The spelling of 18397096704 in words is "eighteen billion, three hundred ninety-seven million, ninety-six thousand, seven hundred four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •