21129008 is an even 8-digits composite number following 21129007
and preceding 21129009 . In scientific notation, it is written as 2.1129008 × 10^7.
The sum of its digits is 23. It has a total of 6 prime factors and 20 positive divisors.
There are 10461120 positive integers (up to 21129008) that are relatively prime to 21129008.
21129008 has 20 divisors, whose sum is 41338128
The reverse of 21129008 is 80092112
Previous prime number is 103
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred twenty-nine thousand eight
Scientific notation
2.1129008 × 10^7
Engineering notation
2.1129008 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 103 × 12821
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2641126
Product of the distinct prime numbers
The prime factorization of 21129008 is 2 × 2 × 2 × 2 × 103 × 12821.
Since it has a total of 6 prime factors.
2 , 10 , 82 , 76 , 673 , 873 , 2152 , 7591 , 38620 , 69380 , 501219 , 639397 , 2123549 , 8911590 , 44430425 , 7188986 , 560242806 , 510325061 , 2956465702 , 9490793660
n×2
42258016
n×3
63387024
n×4
84516032
n×5
105645040
n÷2
10564504
n÷3
7043002.6666667
n÷3
5282252
n÷5
4225801.6
n2
446434979064064
n3
9.4327282441244E+21
n4
1.9930419053193E+29
n5
4.2110998361827E+36
2 √n
4596.6300699534
3 √n
276.45622228409
4 √n
67.798451825638
5 √n
29.172645965153
1 , 2 , 4 , 8 , 16 , 103 , 206 , 412 , 824 , 1648 , 12821 , 25642 , 51284 , 102568 , 205136 , 1320563 , 2641126 , 5282252 , 10564504 , 21129008
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21129007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21129008 can be divided by 20 positive divisors.
The sum of these divisors (counting 21129008) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010000100110011100110000
3
Ternary
1110202110112212
4
Quaternary
1100212130300
5
Quinary
20402112013
6
Senary
2032511252
8
Octal
120463460
10
Decimal
21129008
12
Duodecimal
70ab528
16
Hexadecimal
1426730
20
Vigesimal
6c12a8
36
Base36
ckv8w
md5
81cd7b26a02c822499ab84c23714e4bd
sha1
a1960b3c87dc0a106a2c8d734e42b1c5658ea813
sha256
065466e6f6a3931a4aec488b675f1bf794c1d79c63d94e965b37d24601c53963
sha512
58cef31efe75a9654e9c34477182423e2795c17745f099f92f8990d255c7093d4f8789f1f902b5ff7e32a9cfbb3cd2f8339c87f22de0fd9a1e2d29044c12103d
ripemd-160
1ef229697b6a4a78db901c1babe983a922bfafa1
Diameter
42258016
Circumference
132757472.62088
Area
1.4025168505332E+15
Volume
3.95117196734E+22
Surface area
5.6100674021327E+15
Circumference
132757472.62088
Perimeter
84516032
Area
446434979064064
Diagonal
29880929.67309
Surface area
2678609874384384
Volume
9.4327282441244E+21
Space diagonal
36596515.369529
Perimeter
63387024
Area
1.9331201650373E+14
Altitude
18298257.684765
Surface area
1.9331201650373E+14
Volume
1.1116576844184E+21
Height
9960309.8910299