21991567 is an odd 8-digits composite number following 21991566
and preceding 21991568 . In scientific notation, it is written as 2.1991567 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20299896 positive integers (up to 21991567) that are relatively prime to 21991567.
21991567 has 4 divisors, whose sum is 23683240
The reverse of 21991567 is 76519912
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million nine hundred ninety-one thousand five hundred sixty-seven
Scientific notation
2.1991567 × 10^7
Engineering notation
2.1991567 × 10^6
Prime Factorization
13 × 1691659
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21991567
Product of the distinct prime numbers
The prime factorization of 21991567 is 13 × 1691659.
Since it has a total of 2 prime factors.
9 , 5 , 95 , 42 , 659 , 595 , 9561 , 8445 , 59340 , 92755 , 132293 , 594676 , 5616786 , 2024378 , 73919478 , 30450017 , 474585719 , 470074845 , 4635095387 , 7955469736
n×2
43983134
n×3
65974701
n×4
87966268
n×5
109957835
n÷2
10995783.5
n÷3
7330522.3333333
n÷3
5497891.75
n÷5
4398313.4
n2
483629019115489
n3
1.0635759977023E+22
n4
2.3389702813061E+29
n5
5.1437621652352E+36
2 √n
4689.5167128394
3 √n
280.16812606927
4 √n
68.480046092562
5 √n
29.407034779343
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
-21991566
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 21991567 can be divided by 4 positive divisors.
The sum of these divisors (counting 21991567) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011111001000010001111
3
Ternary
1112101021202111
4
Quaternary
1103321002033
5
Quinary
21112212232
6
Senary
2103204451
8
Octal
123710217
10
Decimal
21991567
12
Duodecimal
7446727
16
Hexadecimal
14f908f
20
Vigesimal
6h8ii7
36
Base36
d3csv
md5
261a87815d34736e6697b05058c8ac6c
sha1
d44c3594b1b55248f3a478f2ab6ba33adaa986e7
sha256
9ea218afc74cc531de8bd7706635925a8dc4a168a9b98d55422a8c5e144de200
sha512
9fd02ab488382f0163d6d55ce595b64d9f98a5c3e3a8503d07ad141debe9c83caf9c4e298c3afda069be250fc503e93ee862eb11845f0859df9d5aa919db5360
ripemd-160
e88bbd278f11675afdf91f7bada2200579d58603
Diameter
43983134
Circumference
138177090.65626
Area
1.5193653735161E+15
Volume
4.4550967212211E+22
Surface area
6.0774614940642E+15
Circumference
138177090.65626
Perimeter
87966268
Area
483629019115489
Diagonal
31100772.309237
Surface area
2901774114692934
Volume
1.0635759977023E+22
Space diagonal
38090511.382055
Perimeter
65974701
Area
2.0941750828068E+14
Altitude
19045255.691028
Surface area
2.0941750828068E+14
Volume
1.2534363338042E+21
Height
10366924.103079