21127789 is an odd 8-digits composite number following 21127788
and preceding 21127790 . In scientific notation, it is written as 2.1127789 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 21066556 positive integers (up to 21127789) that are relatively prime to 21127789.
21127789 has 4 divisors, whose sum is 21189024
The reverse of 21127789 is 98772112
Previous prime number is 347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million one hundred twenty-seven thousand seven hundred eighty-nine
Scientific notation
2.1127789 × 10^7
Engineering notation
2.1127789 × 10^6
Prime Factorization
347 × 60887
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21127789
Product of the distinct prime numbers
The prime factorization of 21127789 is 347 × 60887.
Since it has a total of 2 prime factors.
2 , 1 , 84 , 83 , 472 , 747 , 5193 , 1527 , 97286 , 31307 , 286796 , 734158 , 1199972 , 299659 , 6674796 , 3542069 , 908060271 , 399607524 , 3574351587 , 3827638742
n×2
42255578
n×3
63383367
n×4
84511156
n×5
105638945
n÷2
10563894.5
n÷3
7042596.3333333
n÷3
5281947.25
n÷5
4225557.8
n2
446383468028521
n3
9.4310957255948E+21
n4
1.9925820052917E+29
n5
4.2098852173E+36
2 √n
4596.4974709011
3 √n
276.45090563417
4 √n
67.797473927139
5 √n
29.172309344748
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
-21127788
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 21127789 can be divided by 4 positive divisors.
The sum of these divisors (counting 21127789) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110001001101101
3
Ternary
1110202101212201
4
Quaternary
1100212021231
5
Quinary
20402042124
6
Senary
2032501501
8
Octal
120461155
10
Decimal
21127789
12
Duodecimal
70aa891
16
Hexadecimal
142626d
20
Vigesimal
6c0j99
36
Base36
ckub1
md5
6227446188112371020302296430382e
sha1
fd038d6c6baa62b98786881fca2467500301e41a
sha256
8bd29e6d850ef16b63c9bd2e35af2664782f6ecc1cd45eea0c2d4249ece9c4ae
sha512
745543da9d1f855aaf6f5a805e3b3a35f76b7bfb4908db1300dba42bf4b4cedfc0ec9c4ee79e73771e24fddf2f947957713c2311ad2088909d5c2c78e240f24e
ripemd-160
f97242c638a88e29e5f87ad77be801dd090a77e4
Diameter
42255578
Circumference
132749813.41799
Area
1.4023550238423E+15
Volume
3.9504881395774E+22
Surface area
5.6094200953693E+15
Circumference
132749813.41799
Perimeter
84511156
Area
446383468028521
Diagonal
29879205.746757
Surface area
2678300808171126
Volume
9.4310957255948E+21
Space diagonal
36594403.999595
Perimeter
63383367
Area
1.9328971157105E+14
Altitude
18297201.999797
Surface area
1.9328971157105E+14
Volume
1.1114652902646E+21
Height
9959735.248919