| Base | Representation |
|---|---|
| bin | 10001000011010000… |
| … | …010000001011000000 |
| 3 | 1202020221010002100000 |
| 4 | 101003100100023000 |
| 5 | 244443400000300 |
| 6 | 12224412200000 |
| 7 | 1215460105500 |
| oct | 210320201300 |
| 9 | 52227102300 |
| 10 | 18308203200 |
| 11 | 784555a051 |
| 12 | 366b469000 |
| 13 | 195a041141 |
| 14 | c59737a00 |
| 15 | 722487c00 |
| hex | 4434102c0 |
18308203200 has 1134 divisors, whose sum is σ = 81113081868. Its totient is φ = 4049740800.
The previous prime is 18308203189. The next prime is 18308203201. The reversal of 18308203200 is 230280381.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
18308203200 is a `hidden beast` number, since 18 + 308 + 20 + 320 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (1134).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (18308203201) by changing a digit.
It is a polite number, since it can be written in 161 ways as a sum of consecutive naturals, for example, 590587185 + ... + 590587215.
Almost surely, 218308203200 is an apocalyptic number.
18308203200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18308203200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40556540934).
18308203200 is an abundant number, since it is smaller than the sum of its proper divisors (62804878668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18308203200 is an equidigital number, since it uses as much as digits as its factorization.
18308203200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 113 (or 48 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
Multiplying 18308203200 by its sum of digits (27), we get a square (494321486400 = 7030802).
18308203200 divided by its sum of digits (27) gives a square (678081600 = 260402).
Adding to 18308203200 its reverse (230280381), we get a palindrome (18538483581).
The spelling of 18308203200 in words is "eighteen billion, three hundred eight million, two hundred three thousand, two hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •