21152181 is an odd 8-digits composite number following 21152180
and preceding 21152182 . In scientific notation, it is written as 2.1152181 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 14080752 positive integers (up to 21152181) that are relatively prime to 21152181.
21152181 has 8 divisors, whose sum is 28244320
The reverse of 21152181 is 18125112
Previous prime number is 733
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million one hundred fifty-two thousand one hundred eighty-one
Scientific notation
2.1152181 × 10^7
Engineering notation
2.1152181 × 10^6
Prime Factorization
3 × 733 × 9619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21152181
Product of the distinct prime numbers
The prime factorization of 21152181 is 3 × 733 × 9619.
Since it has a total of 3 prime factors.
7 , 9 , 51 , 49 , 592 , 868 , 9061 , 6529 , 64671 , 15794 , 137753 , 703472 , 4687555 , 1578152 , 99888957 , 80054925 , 277381472 , 313260427 , 1057222773 , 6108057484
n×2
42304362
n×3
63456543
n×4
84608724
n×5
105760905
n÷2
10576090.5
n÷3
7050727
n÷3
5288045.25
n÷5
4230436.2
n2
447414761056761
n3
9.4637980079444E+21
n4
2.0017996841148E+29
n5
4.2342429244139E+36
2 √n
4599.1500301686
3 √n
276.55725210126
4 √n
67.817033481041
5 √n
29.179042113557
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21152180
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21152181 can be divided by 8 positive divisors.
The sum of these divisors (counting 21152181) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000101100000110110101
3
Ternary
1110210122100010
4
Quaternary
1100230012311
5
Quinary
20403332211
6
Senary
2033210433
8
Octal
120540665
10
Decimal
21152181
12
Duodecimal
7100a19
16
Hexadecimal
142c1b5
20
Vigesimal
6c4091
36
Base36
cld4l
md5
1e04b737b13b3a60544295eaeb32cfa0
sha1
f14b75ace97f983bf99e7e9d19488d5d885208b0
sha256
3938742cd29aa27add099cf995c9ec1afdf2c7a2d4b1d0689b54c844fa34470c
sha512
55bcc1142be2c48ae989b671a05ba01c78cc978552409c8c6d6046d3a7489aca9f15fa20dc97d68d09d8b637c113b118ec31ae5897ed52e3b902d9cfe9a2043c
ripemd-160
3fdc0d4690d0835a84d5bce38630ad9e98450a61
Diameter
42304362
Circumference
132903072.874
Area
1.4055949264436E+15
Volume
3.9641864395754E+22
Surface area
5.6223797057742E+15
Circumference
132903072.874
Perimeter
84608724
Area
447414761056761
Diagonal
29913701.24397
Surface area
2684488566340566
Volume
9.4637980079444E+21
Space diagonal
36636652.182893
Perimeter
63456543
Area
1.9373627455165E+14
Altitude
18318326.091447
Surface area
1.9373627455165E+14
Volume
1.1153192911995E+21
Height
9971233.7479902