21139929 is an odd 8-digits composite number following 21139928
and preceding 21139930 . In scientific notation, it is written as 2.1139929 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 14071200 positive integers (up to 21139929) that are relatively prime to 21139929.
21139929 has 8 divisors, whose sum is 23525640
The reverse of 21139929 is 92993112
Previous prime number is 821
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million one hundred thirty-nine thousand nine hundred twenty-nine
Scientific notation
2.1139929 × 10^7
Engineering notation
2.1139929 × 10^6
Prime Factorization
9 × 821 × 2861
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21139929
Product of the distinct prime numbers
The prime factorization of 21139929 is 9 × 821 × 2861.
Since it has a total of 3 prime factors.
6 , 10 , 88 , 68 , 723 , 853 , 7537 , 117 , 47878 , 66050 , 305317 , 159459 , 8567644 , 1469731 , 88311833 , 66380490 , 999432098 , 880926223 , 3240422794 , 9480022428
n×2
42279858
n×3
63419787
n×4
84559716
n×5
105699645
n÷2
10569964.5
n÷3
7046643
n÷3
5284982.25
n÷5
4227985.8
n2
446896598125041
n3
9.4473623547049E+21
n4
1.9971656941573E+29
n5
4.2219940975722E+36
2 √n
4597.8178519815
3 √n
276.5038449391
4 √n
67.807210914338
5 √n
29.175661048662
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
-21139928
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 21139929 can be divided by 8 positive divisors.
The sum of these divisors (counting 21139929) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000101001000111011001
3
Ternary
1110210000112100
4
Quaternary
1100221013121
5
Quinary
20402434204
6
Senary
2033034013
8
Octal
120510731
10
Decimal
21139929
12
Duodecimal
70b5909
16
Hexadecimal
14291d9
20
Vigesimal
6c29g9
36
Base36
cl3o9
md5
a1fa5f15fb6f16ce606692309d35e6b4
sha1
3d93b33b9388c9dcb868b26f97500ae2b3b114e0
sha256
eea1daa446e36b95bebdedecca12ea0ec92907cf66b9b2e6af50b56ef35dbb2e
sha512
0c2e7ae2dc55baba41cc19de8e5aadaf0e58895430148eb1d3448054833ef19152d2d2abdc659b0fe2bdac23d90f975523c9b38aa4def025310ec328fa31092e
ripemd-160
c44bf2fd0df104032cffc00b5b70bea8c6cd62cb
Diameter
42279858
Circumference
132826091.28762
Area
1.4039670695839E+15
Volume
3.9573018892456E+22
Surface area
5.6158682783356E+15
Circumference
132826091.28762
Perimeter
84559716
Area
446896598125041
Diagonal
29896374.299404
Surface area
2681379588750246
Volume
9.4473623547049E+21
Space diagonal
36615431.096399
Perimeter
63419787
Area
1.9351190342057E+14
Altitude
18307715.548199
Surface area
1.9351190342057E+14
Volume
1.1133823308897E+21
Height
9965458.0998014