21000895 is an odd 8-digits composite number following 21000894
and preceding 21000896 . In scientific notation, it is written as 2.1000895 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16775136 positive integers (up to 21000895) that are relatively prime to 21000895.
21000895 has 8 divisors, whose sum is 25239456
The reverse of 21000895 is 59800012
Previous prime number is 743
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million eight hundred ninety-five
Scientific notation
2.1000895 × 10^7
Engineering notation
2.1000895 × 10^6
Prime Factorization
5 × 743 × 5653
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000895
Product of the distinct prime numbers
The prime factorization of 21000895 is 5 × 743 × 5653.
Since it has a total of 3 prime factors.
10 , 9 , 9 , 66 , 189 , 493 , 6234 , 5893 , 48514 , 13812 , 107216 , 912926 , 2289818 , 1808487 , 70816420 , 66220721 , 543723527 , 188588272 , 8187845242 , 7373744806
n×2
42001790
n×3
63002685
n×4
84003580
n×5
105004475
n÷2
10500447.5
n÷3
7000298.3333333
n÷3
5250223.75
n÷5
4200179
n2
441037590801025
n3
9.2621841354653E+21
n4
1.9451415649957E+29
n5
4.0849713766611E+36
2 √n
4582.6733464213
3 √n
275.89633700646
4 √n
67.695445536766
5 √n
29.137182939209
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
-21000894
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 21000895 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000895) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001010111111
3
Ternary
1110111221210221
4
Quaternary
1100013022333
5
Quinary
20334012040
6
Senary
2030042211
8
Octal
120071277
10
Decimal
21000895
12
Duodecimal
7049367
16
Hexadecimal
14072bf
20
Vigesimal
6b524f
36
Base36
ci4e7
md5
5dd509253495f14ca406c6083f10888b
sha1
e1edc0245f6ded83aad13ff727981284dda5f553
sha256
9c8aa9c7fbc94e2a0632f0426564762a3048e3a12fde5eb16c01cc44c48d16c4
sha512
322999684780d25922059a0dfb9f9f0630abee4006f290d77cd786194c2be8548898f3d2ba92f7269d06e986afec1fd18764ccb6ebf9b1353c244742598b9cc7
ripemd-160
3dbeeaaab8e2c72518b4d30c594b9f6c54c255d1
Diameter
42001790
Circumference
131952514.90162
Area
1.3855604552174E+15
Volume
3.8797346181565E+22
Surface area
5.5422418208698E+15
Circumference
131952514.90162
Perimeter
84003580
Area
441037590801025
Diagonal
29699750.530973
Surface area
2646225544806150
Volume
9.2621841354653E+21
Space diagonal
36374617.144419
Perimeter
63002685
Area
1.9097487882879E+14
Altitude
18187308.57221
Surface area
1.9097487882879E+14
Volume
1.0915588684643E+21
Height
9899916.8436578