21000394 is an even 8-digits composite number following 21000393
and preceding 21000395 . In scientific notation, it is written as 2.1000394 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 10476960 positive integers (up to 21000394) that are relatively prime to 21000394.
21000394 has 8 divisors, whose sum is 31570308
The reverse of 21000394 is 49300012
Previous prime number is 461
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million three hundred ninety-four
Scientific notation
2.1000394 × 10^7
Engineering notation
2.1000394 × 10^6
Prime Factorization
2 × 461 × 22777
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000394
Product of the distinct prime numbers
The prime factorization of 21000394 is 2 × 461 × 22777.
Since it has a total of 3 prime factors.
3 , 10 , 10 , 40 , 572 , 566 , 1755 , 9237 , 58798 , 31139 , 600275 , 331019 , 8447906 , 8575698 , 38420456 , 32865289 , 8650226 , 685233493 , 8774927248 , 2996070785
n×2
42000788
n×3
63001182
n×4
84001576
n×5
105001970
n÷2
10500197
n÷3
7000131.3333333
n÷3
5250098.5
n÷5
4200078.8
n2
441016548155236
n3
9.2615212717799E+21
n4
1.9449559574676E+29
n5
4.0844841419467E+36
2 √n
4582.6186836786
3 √n
275.89414304974
4 √n
67.695041795382
5 √n
29.13704391782
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
-21000393
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 21000394 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000394) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111000011001010
3
Ternary
1110111221010101
4
Quaternary
1100013003022
5
Quinary
20334003034
6
Senary
2030040014
8
Octal
120070312
10
Decimal
21000394
12
Duodecimal
704900a
16
Hexadecimal
14070ca
20
Vigesimal
6b50je
36
Base36
ci40a
md5
0a87b896a0d982e732491cfe7040fe0d
sha1
71a0aaea432f55dee50a7d2ac6caac006b97db06
sha256
5249c7a6dfa8cdce4057b3485b8f14541f1b013b8b5650f1e05f6293b6450c19
sha512
a58b104de019ea0e289840352cfc4bc3bbf44a7cc5a37e81f7790c00f258f0545c9e31b62c604961ad22b763e929fe8536d8b22807cd9be76b0834e054365857
ripemd-160
78256e228122a5466a55c232a55e82fa2734dbf0
Diameter
42000788
Circumference
131949367.02578
Area
1.385494347796E+15
Volume
3.8794569584653E+22
Surface area
5.5419773911841E+15
Circumference
131949367.02578
Perimeter
84001576
Area
441016548155236
Diagonal
29699042.009979
Surface area
2646099288931416
Volume
9.2615212717799E+21
Space diagonal
36373749.386965
Perimeter
63001182
Area
1.9096576709588E+14
Altitude
18186874.693482
Surface area
1.9096576709588E+14
Volume
1.0914807492298E+21
Height
9899680.6699929