21139925 is an odd 8-digits composite number following 21139924
and preceding 21139926 . In scientific notation, it is written as 2.1139925 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 15916800 positive integers (up to 21139925) that are relatively prime to 21139925.
21139925 has 4 divisors, whose sum is 21190092
The reverse of 21139925 is 52993112
Previous prime number is 425
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million one hundred thirty-nine thousand nine hundred twenty-five
Scientific notation
2.1139925 × 10^7
Engineering notation
2.1139925 × 10^6
Prime Factorization
425 × 49741
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21139925
Product of the distinct prime numbers
The prime factorization of 21139925 is 425 × 49741.
Since it has a total of 2 prime factors.
7 , 3 , 80 , 82 , 44 , 502 , 6730 , 8799 , 32917 , 59007 , 439157 , 519483 , 5109268 , 6264303 , 85637168 , 8897023 , 822251465 , 769135954 , 1391494122 , 5865407327
n×2
42279850
n×3
63419775
n×4
84559700
n×5
105699625
n÷2
10569962.5
n÷3
7046641.6666667
n÷3
5284981.25
n÷5
4227985
n2
446896429005625
n3
9.4473569919467E+21
n4
1.9971641825798E+29
n5
4.2219901032423E+36
2 √n
4597.8174169925
3 √n
276.50382749951
4 √n
67.807207706796
5 √n
29.175659944565
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
-21139924
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 21139925 can be divided by 4 positive divisors.
The sum of these divisors (counting 21139925) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101001000111010101
3
Ternary
1110210000112012
4
Quaternary
1100221013111
5
Quinary
20402434200
6
Senary
2033034005
8
Octal
120510725
10
Decimal
21139925
12
Duodecimal
70b5905
16
Hexadecimal
14291d5
20
Vigesimal
6c29g5
36
Base36
cl3o5
md5
3e8bb0891af6be3e8b2c6b7c0e21fa45
sha1
a8bcfeee2f1ee9fe9070fa5b8606136eb554934c
sha256
c1969b10119b6e65b2c4656dfb2cff40374a796acce554e8e0dcf905477d0e4d
sha512
ba3e19c98400ae848ef9a16ffa61544fe8db3dda2ebf89304339517df24a1c05e7b958b1aa5eca565d80a6191e4bc5a34e1f54a518b1a3e95958387df8757b86
ripemd-160
de73b7c67d0d5740884523749c7b832f2370c68d
Diameter
42279850
Circumference
132826066.15488
Area
1.4039665382796E+15
Volume
3.9572996428987E+22
Surface area
5.6158661531183E+15
Circumference
132826066.15488
Perimeter
84559700
Area
446896429005625
Diagonal
29896368.64255
Surface area
2681378574033750
Volume
9.4473569919467E+21
Space diagonal
36615424.168195
Perimeter
63419775
Area
1.9351183018971E+14
Altitude
18307712.084098
Surface area
1.9351183018971E+14
Volume
1.1133816988826E+21
Height
9965456.2141834