21081772 is an even 8-digits composite number following 21081771
and preceding 21081773 . In scientific notation, it is written as 2.1081772 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 6 positive divisors.
There are 10540884 positive integers (up to 21081772) that are relatively prime to 21081772.
21081772 has 6 divisors, whose sum is 36893108
The reverse of 21081772 is 27718012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million eighty-one thousand seven hundred seventy-two
Scientific notation
2.1081772 × 10^7
Engineering notation
2.1081772 × 10^6
Prime Factorization
2 × 2 × 5270443
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10540886
Product of the distinct prime numbers
The prime factorization of 21081772 is 2 × 2 × 5270443.
Since it has a total of 3 prime factors.
3 , 4 , 27 , 58 , 387 , 311 , 6230 , 1196 , 78658 , 27726 , 361975 , 690674 , 7668010 , 628394 , 43093963 , 90769141 , 300166872 , 506693193 , 2746151498 , 9833356541
n×2
42163544
n×3
63245316
n×4
84327088
n×5
105408860
n÷2
10540886
n÷3
7027257.3333333
n÷3
5270443
n÷5
4216354.4
n2
444441110659984
n3
9.3696061623606E+21
n4
1.9752790084468E+29
n5
4.1642381692462E+36
2 √n
4591.4890830753
3 √n
276.2500534387
4 √n
67.760527470463
5 √n
29.159590614689
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21081771
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21081772 can be divided by 6 positive divisors.
The sum of these divisors (counting 21081772) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000011010111010101100
3
Ternary
1110200001202101
4
Quaternary
1100122322230
5
Quinary
20344104042
6
Senary
2031504444
8
Octal
120327254
10
Decimal
21081772
12
Duodecimal
7088124
16
Hexadecimal
141aeac
20
Vigesimal
6bf48c
36
Base36
cjuss
md5
2b47142e8ec0751fd3c9c71c4a020c50
sha1
2d0221f9d40bf1543111edb3f3dbe9cde2086d0d
sha256
e65005829b574295446bb3ad65b6ba330d56ae03c9949d33ee9e47cad834a894
sha512
ace1f2fc03edfe74eb8aae900bf9f29eb48c39cc4692e39efec68e4a41fddb285dd1b25be4952843a085e7d7c115ee95cd5afcdfe003b3aa3d97184afb4ceaae
ripemd-160
5bc5614513365bf6ecc822a02878776797b7e000
Diameter
42163544
Circumference
132460680.07971
Area
1.3962529282027E+15
Volume
3.9247314515602E+22
Surface area
5.5850117128108E+15
Circumference
132460680.07971
Perimeter
84327088
Area
444441110659984
Diagonal
29814127.881257
Surface area
2666646663959904
Volume
9.3696061623606E+21
Space diagonal
36514700.217583
Perimeter
63245316
Area
1.9244864615886E+14
Altitude
18257350.108791
Surface area
1.9244864615886E+14
Volume
1.1042186757421E+21
Height
9938042.6270858