21000869 is an odd 8-digits composite number following 21000868
and preceding 21000870 . In scientific notation, it is written as 2.1000869 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20553996 positive integers (up to 21000869) that are relatively prime to 21000869.
21000869 has 4 divisors, whose sum is 21447744
The reverse of 21000869 is 96800012
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million eight hundred sixty-nine
Scientific notation
2.1000869 × 10^7
Engineering notation
2.1000869 × 10^6
Prime Factorization
47 × 446827
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000869
Product of the distinct prime numbers
The prime factorization of 21000869 is 47 × 446827.
Since it has a total of 2 prime factors.
3 , 5 , 81 , 98 , 4 , 461 , 6061 , 5490 , 57262 , 81589 , 147347 , 497938 , 2464631 , 4142745 , 96144085 , 1601842 , 532758788 , 123050635 , 6641803990 , 7264376631
n×2
42001738
n×3
63002607
n×4
84003476
n×5
105004345
n÷2
10500434.5
n÷3
7000289.6666667
n÷3
5250217.25
n÷5
4200173.8
n2
441036498755161
n3
9.2621497345758E+21
n4
1.9451319323421E+29
n5
4.0849460898834E+36
2 √n
4582.6705096483
3 √n
275.89622314929
4 √n
67.695424584297
5 √n
29.137175724591
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000868
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000869 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000869) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111001010100101
3
Ternary
1110111221202222
4
Quaternary
1100013022211
5
Quinary
20334011434
6
Senary
2030042125
8
Octal
120071245
10
Decimal
21000869
12
Duodecimal
7049345
16
Hexadecimal
14072a5
20
Vigesimal
6b5239
36
Base36
ci4dh
md5
b840bb7829b57ed7289d32b8b96b5dc7
sha1
814df32c753dc4417d837f4320ac9989aa7a5a25
sha256
647fe2be041aa337e059c015178d9f84d685631c9d73df94eeebce814e544163
sha512
839f0c61c46d547f63b24600fa54c2d57ea48b962e91c061257021a41f93cedd804554fb9d6e956737138ea91aca335e0fbde031e1cb4763ac0e7e6f9bf07ec7
ripemd-160
9ce202e33d9bef9668206d7c74cfac7e3fc7e977
Diameter
42001738
Circumference
131952351.5388
Area
1.3855570244542E+15
Volume
3.8797202083456E+22
Surface area
5.5422280978167E+15
Circumference
131952351.5388
Perimeter
84003476
Area
441036498755161
Diagonal
29699713.761421
Surface area
2646218992530966
Volume
9.2621497345758E+21
Space diagonal
36374572.111098
Perimeter
63002607
Area
1.9097440595906E+14
Altitude
18187286.055549
Surface area
1.9097440595906E+14
Volume
1.0915548142806E+21
Height
9899904.5871402