27991663 is an odd 8-digits composite number following 27991662
and preceding 27991664 . In scientific notation, it is written as 2.7991663 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 23992848 positive integers (up to 27991663) that are relatively prime to 27991663.
27991663 has 4 divisors, whose sum is 31990480
The reverse of 27991663 is 36619972
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-seven million nine hundred ninety-one thousand six hundred sixty-three
Scientific notation
2.7991663 × 10^7
Engineering notation
2.7991663 × 10^6
Prime Factorization
7 × 3998809
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
27991663
Product of the distinct prime numbers
The prime factorization of 27991663 is 7 × 3998809.
Since it has a total of 2 prime factors.
6 , 9 , 49 , 49 , 232 , 842 , 4698 , 2288 , 24792 , 51708 , 74447 , 6647 , 4908057 , 5918081 , 27627683 , 76260078 , 464286177 , 53209299 , 6126787249 , 4658286573
n×2
55983326
n×3
83974989
n×4
111966652
n×5
139958315
n÷2
13995831.5
n÷3
9330554.3333333
n÷3
6997915.75
n÷5
5598332.6
n2
783533197505569
n3
2.1932397213888E+22
n4
6.139242715933E+29
n5
1.718476131796E+37
2 √n
5290.7147910278
3 √n
303.62875605031
4 √n
72.737299860716
5 √n
30.860697685385
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-27991662
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 27991663 can be divided by 4 positive divisors.
The sum of these divisors (counting 27991663) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101010110001111001101111
3
Ternary
1221200010100021
4
Quaternary
1222301321233
5
Quinary
24131213123
6
Senary
2435543011
8
Octal
152617157
10
Decimal
27991663
12
Duodecimal
945aa67
16
Hexadecimal
1ab1e6f
20
Vigesimal
8eij33
36
Base36
gnyi7
md5
425ebfd75ef99c46d528a1f8ab30da64
sha1
f6e14b32bd75a4d9ff19911e1f9822c6343c48b9
sha256
f7c7044a80bff27a23ea1b31559e1d37eeade8e9e93d00ae8bf7191d048f12b5
sha512
e8110a1b87c58c269c110738af5656aaade48b990c99d0d43c5d74c83e94faabd9f073cd7a1eac18e302f68657f12855d6ad8b3c4bcf0ec5ea4e8ea8e7621102
ripemd-160
5edeceed88a9427bdf26713dd967c74024bd8137
Diameter
55983326
Circumference
175876805.68512
Area
2.4615421371272E+15
Volume
9.187021061702E+22
Surface area
9.8461685485089E+15
Circumference
175876805.68512
Perimeter
111966652
Area
783533197505569
Diagonal
39586189.447977
Surface area
4701199185033414
Volume
2.1932397213888E+22
Space diagonal
48482982.504346
Perimeter
83974989
Area
3.3927982687414E+14
Altitude
24241491.252173
Surface area
3.3927982687414E+14
Volume
2.5847577996029E+21
Height
13195396.482659