21000858 is an even 8-digits composite number following 21000857
and preceding 21000859 . In scientific notation, it is written as 2.1000858 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 6983600 positive integers (up to 21000858) that are relatively prime to 21000858.
21000858 has 16 divisors, whose sum is 42101856
The reverse of 21000858 is 85800012
Previous prime number is 443
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million eight hundred fifty-eight
Scientific notation
2.1000858 × 10^7
Engineering notation
2.1000858 × 10^6
Prime Factorization
2 × 3 × 443 × 7901
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21000858
Product of the distinct prime numbers
The prime factorization of 21000858 is 2 × 3 × 443 × 7901.
Since it has a total of 4 prime factors.
10 , 10 , 96 , 60 , 490 , 510 , 7360 , 4083 , 43273 , 21901 , 21822 , 919303 , 470422 , 9239778 , 25284915 , 63542994 , 826998181 , 687430371 , 537707382 , 9595166223
n×2
42001716
n×3
63002574
n×4
84003432
n×5
105004290
n÷2
10500429
n÷3
7000286
n÷3
5250214.5
n÷5
4200171.6
n2
441036036736164
n3
9.262135180379E+21
n4
1.9451278569994E+29
n5
4.0849353916689E+36
2 √n
4582.6693094746
3 √n
275.89617497891
4 √n
67.695415719785
5 √n
29.137172672251
1 , 2 , 3 , 6 , 443 , 886 , 1329 , 2658 , 7901 , 15802 , 23703 , 47406 , 3500143 , 7000286 , 10500429 , 21000858
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000857
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000858 can be divided by 16 positive divisors.
The sum of these divisors (counting 21000858) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000111001010011010
3
Ternary
1110111221202120
4
Quaternary
1100013022122
5
Quinary
20334011413
6
Senary
2030042110
8
Octal
120071232
10
Decimal
21000858
12
Duodecimal
7049336
16
Hexadecimal
140729a
20
Vigesimal
6b522i
36
Base36
ci4d6
md5
edcf2631ea34750b8e46dc7fdb83b0e7
sha1
b6a06182dc09928ca1eef8d87b4d586ed64a5421
sha256
3d98d68ffe47c252f55abc79ccb661bd50c1e845663e04ac27548dea265b26c5
sha512
8d3e597ba017b1e5004ba1cb53ec493e14f7fa242014a70764671c8855b249a26e86ad84f5b6af71c244617ca67c58a09bc5231ed7e80e311c84f28731ada3f7
ripemd-160
d7ab25ddc427cd220fb71334462f316c0b211adb
Diameter
42001716
Circumference
131952282.42376
Area
1.3855555729787E+15
Volume
3.8797141118979E+22
Surface area
5.5422222919148E+15
Circumference
131952282.42376
Perimeter
84003432
Area
441036036736164
Diagonal
29699698.205072
Surface area
2646216220416984
Volume
9.262135180379E+21
Space diagonal
36374553.058539
Perimeter
63002574
Area
1.9097420589896E+14
Altitude
18187276.52927
Surface area
1.9097420589896E+14
Volume
1.0915530990521E+21
Height
9899899.4016905