21127745 is an odd 8-digits composite number following 21127744
and preceding 21127746 . In scientific notation, it is written as 2.1127745 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 16902192 positive integers (up to 21127745) that are relatively prime to 21127745.
21127745 has 4 divisors, whose sum is 25353300
The reverse of 21127745 is 54772112
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million one hundred twenty-seven thousand seven hundred forty-five
Scientific notation
2.1127745 × 10^7
Engineering notation
2.1127745 × 10^6
Prime Factorization
5 × 4225549
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21127745
Product of the distinct prime numbers
The prime factorization of 21127745 is 5 × 4225549.
Since it has a total of 2 prime factors.
2 , 3 , 22 , 37 , 96 , 774 , 8301 , 8419 , 33281 , 6141 , 633405 , 787514 , 29897 , 3746926 , 72134161 , 65177945 , 263733292 , 159616294 , 8351231458 , 3921846683
n×2
42255490
n×3
63383235
n×4
84510980
n×5
105638725
n÷2
10563872.5
n÷3
7042581.6666667
n÷3
5281936.25
n÷5
4225549
n2
446381608785025
n3
9.4310368030998E+21
n4
1.9925654066151E+29
n5
4.2098413806785E+36
2 √n
4596.4926846455
3 √n
276.45071372502
4 √n
67.797438628945
5 √n
29.17229719409
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
-21127744
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 21127745 can be divided by 4 positive divisors.
The sum of these divisors (counting 21127745) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110001001000001
3
Ternary
1110202101211002
4
Quaternary
1100212021001
5
Quinary
20402041440
6
Senary
2032501345
8
Octal
120461101
10
Decimal
21127745
12
Duodecimal
70aa855
16
Hexadecimal
1426241
20
Vigesimal
6c0j75
36
Base36
cku9t
md5
a360749bff5e4996876821d809418ea5
sha1
5c8b69fc8d4be0bd1b29df3819cf3ab3c6ebb995
sha256
a9d4d83a1cf53796e024fd4c42a1174ee771511ad5bbda8967e43d9970251757
sha512
6df4057cef3c2f4b52a4b46ae78a046cb0127c12045ee00f93c757c070da3fa114b40e232195c7ea5ed3d7ff3c511938fc557c378498c200c34fdf324e867a57
ripemd-160
0d568f0d5d6607821d27bd1e52d79515e63a9f89
Diameter
42255490
Circumference
132749536.95784
Area
1.4023491828566E+15
Volume
3.9504634581804E+22
Surface area
5.6093967314265E+15
Circumference
132749536.95784
Perimeter
84510980
Area
446381608785025
Diagonal
29879143.52136
Surface area
2678289652710150
Volume
9.4310368030998E+21
Space diagonal
36594327.789359
Perimeter
63383235
Area
1.93288906495E+14
Altitude
18297163.89468
Surface area
1.93288906495E+14
Volume
1.111458346182E+21
Height
9959714.5071201