21000879 is an odd 8-digits composite number following 21000878
and preceding 21000880 . In scientific notation, it is written as 2.1000879 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13736112 positive integers (up to 21000879) that are relatively prime to 21000879.
21000879 has 8 divisors, whose sum is 23775120
The reverse of 21000879 is 97800012
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million eight hundred seventy-nine
Scientific notation
2.1000879 × 10^7
Engineering notation
2.1000879 × 10^6
Prime Factorization
9 × 53 × 44027
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000879
Product of the distinct prime numbers
The prime factorization of 21000879 is 9 × 53 × 44027.
Since it has a total of 3 prime factors.
3 , 7 , 99 , 32 , 645 , 78 , 8797 , 1132 , 59533 , 87153 , 863053 , 707713 , 8131558 , 9381457 , 71411436 , 59067408 , 575428814 , 892061116 , 3691301439 , 3129357874
n×2
42001758
n×3
63002637
n×4
84003516
n×5
105004395
n÷2
10500439.5
n÷3
7000293
n÷3
5250219.75
n÷5
4200175.8
n2
441036918772641
n3
9.2621629656771E+21
n4
1.9451356372047E+29
n5
4.0849558155523E+36
2 √n
4582.671600715
3 √n
275.89626694052
4 √n
67.695432642941
5 √n
29.137178499445
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
-21000878
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 21000879 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000879) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001010101111
3
Ternary
1110111221210100
4
Quaternary
1100013022233
5
Quinary
20334012004
6
Senary
2030042143
8
Octal
120071257
10
Decimal
21000879
12
Duodecimal
7049353
16
Hexadecimal
14072af
20
Vigesimal
6b523j
36
Base36
ci4dr
md5
99961a0ea3274b4ff8cb978453bd40ee
sha1
d9de6c789eee2d2b6578a0b02a3997106a0acffd
sha256
b9f48374206a6af38a2feea942717765ea698c68890e3411d7bb535dc05f0a3a
sha512
557778c8e75ec09c724794a7c0f3d61772b06f3d9c17e19c8b2cd80e14a9972a3e9026fb85904581f1d1ac3385a56b1b31c896b1e572e6dd1393705e14305147
ripemd-160
fdbd96dbe43978328be907a3dc07bc5676e3ef3a
Diameter
42001758
Circumference
131952414.37066
Area
1.385558343978E+15
Volume
3.8797257505763E+22
Surface area
5.542233375912E+15
Circumference
131952414.37066
Perimeter
84003516
Area
441036918772641
Diagonal
29699727.903556
Surface area
2646221512635846
Volume
9.2621629656771E+21
Space diagonal
36374589.431606
Perimeter
63002637
Area
1.9097458783196E+14
Altitude
18187294.715803
Surface area
1.9097458783196E+14
Volume
1.0915563735809E+21
Height
9899909.3011854