21000679 is an odd 8-digits composite number following 21000678
and preceding 21000680 . In scientific notation, it is written as 2.1000679 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 17217816 positive integers (up to 21000679) that are relatively prime to 21000679.
21000679 has 8 divisors, whose sum is 25044480
The reverse of 21000679 is 97600012
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million six hundred seventy-nine
Scientific notation
2.1000679 × 10^7
Engineering notation
2.1000679 × 10^6
Prime Factorization
7 × 23 × 130439
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000679
Product of the distinct prime numbers
The prime factorization of 21000679 is 7 × 23 × 130439.
Since it has a total of 3 prime factors.
9 , 6 , 7 , 26 , 681 , 10 , 6048 , 8789 , 88613 , 72172 , 139851 , 20968 , 2695315 , 1471940 , 87688712 , 20650159 , 713797017 , 591660568 , 8272977963 , 9060482051
n×2
42001358
n×3
63002037
n×4
84002716
n×5
105003395
n÷2
10500339.5
n÷3
7000226.3333333
n÷3
5250169.75
n÷5
4200135.8
n2
441028518461041
n3
9.2618983460459E+21
n4
1.9450615409594E+29
n5
4.0847613056934E+36
2 √n
4582.6497793307
3 √n
275.89539111323
4 √n
67.695271469511
5 √n
29.137123002169
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
-21000678
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 21000679 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000679) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000111100111
3
Ternary
1110111221111221
4
Quaternary
1100013013213
5
Quinary
20334010204
6
Senary
2030041211
8
Octal
120070747
10
Decimal
21000679
12
Duodecimal
7049207
16
Hexadecimal
14071e7
20
Vigesimal
6b51dj
36
Base36
ci487
md5
58270304e0493ffa56f43a9a832b4ffd
sha1
16ae9011966b0f57889a5cdfbc4ba31ee4ff3267
sha256
01e011784dde2f7bdc8f1ce09fbeba9a706cee8d6e40df02222d2f73b719728d
sha512
27cb33cbc897c120a40c936198c01c4c5f1036876bc2c1bf91fa65f235371a6a4dbd79fdb1779cfba2b76c8c12214673a5c0d09740b8ac44156782d7490e5aa7
ripemd-160
6835f663fd3cb21a9949cf559aa540d936a31547
Diameter
42001358
Circumference
131951157.73359
Area
1.3855319536208E+15
Volume
3.8796149069644E+22
Surface area
5.5421278144832E+15
Circumference
131951157.73359
Perimeter
84002716
Area
441028518461041
Diagonal
29699445.060844
Surface area
2646171110766246
Volume
9.2618983460459E+21
Space diagonal
36374243.021445
Perimeter
63002037
Area
1.9097095039034E+14
Altitude
18187121.510722
Surface area
1.9097095039034E+14
Volume
1.0915251878583E+21
Height
9899815.0202813