21139930 is an even 8-digits composite number following 21139929
and preceding 21139931 . In scientific notation, it is written as 2.1139930 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 7247952 positive integers (up to 21139930) that are relatively prime to 21139930.
21139930 has 8 divisors, whose sum is 32616000
The reverse of 21139930 is 03993112
Previous prime number is 35
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred thirty-nine thousand nine hundred thirty
Scientific notation
2.1139930 × 10^7
Engineering notation
2.1139930 × 10^6
Prime Factorization
2 × 35 × 301999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21139930
Product of the distinct prime numbers
The prime factorization of 21139930 is 2 × 35 × 301999.
Since it has a total of 3 prime factors.
2 , 9 , 37 , 18 , 512 , 168 , 3955 , 5616 , 35787 , 65487 , 608885 , 485769 , 4627246 , 6858352 , 42254158 , 77769794 , 304229340 , 42118391 , 9663868914 , 2905029798
n×2
42279860
n×3
63419790
n×4
84559720
n×5
105699650
n÷2
10569965
n÷3
7046643.3333333
n÷3
5284982.5
n÷5
4227986
n2
446896640404900
n3
9.4473636953948E+21
n4
1.9971660720519E+29
n5
4.2219950961551E+36
2 √n
4597.8179607288
3 √n
276.503849299
4 √n
67.807211716224
5 √n
29.175661324686
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
-21139929
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 21139930 can be divided by 8 positive divisors.
The sum of these divisors (counting 21139930) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000101001000111011010
3
Ternary
1110210000112101
4
Quaternary
1100221013122
5
Quinary
20402434210
6
Senary
2033034014
8
Octal
120510732
10
Decimal
21139930
12
Duodecimal
70b590a
16
Hexadecimal
14291da
20
Vigesimal
6c29ga
36
Base36
cl3oa
md5
1add1cb5d137ca86ac3cffb965c33b1d
sha1
dbd9901296294d7a8cf062a7f2416163f6304cb3
sha256
494f11d758ffc1357811393b18596aa7a8a171e953fc90b0007e9ed2218ba18b
sha512
5745693854b76342178887e549041536126a3c3a0e02d7c0af8eecda9dddb91e8acbead96b9c0b1c05a24db409dfffd7bf7a59618f8a453a053f3e4af210b080
ripemd-160
b2518c91a5e08e50415b5f4bdf57ec0cdcd1f6ca
Diameter
42279860
Circumference
132826097.5708
Area
1.40396720241E+15
Volume
3.9573024508324E+22
Surface area
5.61586880964E+15
Circumference
132826097.5708
Perimeter
84559720
Area
446896640404900
Diagonal
29896375.713618
Surface area
2681379842429400
Volume
9.4473636953948E+21
Space diagonal
36615432.82845
Perimeter
63419790
Area
1.9351192172828E+14
Altitude
18307716.414225
Surface area
1.9351192172828E+14
Volume
1.1133824888915E+21
Height
9965458.571206