21000894 is an even 8-digits composite number following 21000893
and preceding 21000895 . In scientific notation, it is written as 2.1000894 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 7000296 positive integers (up to 21000894) that are relatively prime to 21000894.
21000894 has 8 divisors, whose sum is 42001800
The reverse of 21000894 is 49800012
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million eight hundred ninety-four
Scientific notation
2.1000894 × 10^7
Engineering notation
2.1000894 × 10^6
Prime Factorization
2 × 3 × 3500149
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000894
Product of the distinct prime numbers
The prime factorization of 21000894 is 2 × 3 × 3500149.
Since it has a total of 3 prime factors.
9 , 10 , 40 , 82 , 270 , 429 , 8592 , 5823 , 70749 , 43562 , 483939 , 842746 , 8113443 , 3147551 , 9044989 , 58417871 , 667970214 , 250540849 , 1889279783 , 2443485266
n×2
42001788
n×3
63002682
n×4
84003576
n×5
105004470
n÷2
10500447
n÷3
7000298
n÷3
5250223.5
n÷5
4200178.8
n2
441037548799236
n3
9.2621828123526E+21
n4
1.9451411945084E+29
n5
4.0849704040904E+36
2 √n
4582.6732373147
3 √n
275.89633262734
4 √n
67.695444730902
5 √n
29.137182661723
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
-21000893
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 21000894 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000894) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001010111110
3
Ternary
1110111221210220
4
Quaternary
1100013022332
5
Quinary
20334012034
6
Senary
2030042210
8
Octal
120071276
10
Decimal
21000894
12
Duodecimal
7049366
16
Hexadecimal
14072be
20
Vigesimal
6b524e
36
Base36
ci4e6
md5
740fd7d0fbaf62fc7827835394706239
sha1
c59aac498c2b88fea7e4b0f1bbe07631a9c6596c
sha256
996d1b149ba9b31cde7e12aa03324ea1af8daa76504f59fc52988ec2f177b3c5
sha512
86c8d3656dc49bd8239f08a171f4cf7f78d7ce2aa3ee30ee4e4f1146ae4454b17d3c3a7bbc1992c794c056bb3d32932e80a18e152d474f5f000520bed9dd3dfe
ripemd-160
e1471437207f386543492b4a86d08015dcf08293
Diameter
42001788
Circumference
131952508.61844
Area
1.3855603232649E+15
Volume
3.8797340639323E+22
Surface area
5.5422412930597E+15
Circumference
131952508.61844
Perimeter
84003576
Area
441037548799236
Diagonal
29699749.11676
Surface area
2646225292795416
Volume
9.2621828123526E+21
Space diagonal
36374615.412368
Perimeter
63002682
Area
1.9097486064148E+14
Altitude
18187307.706184
Surface area
1.9097486064148E+14
Volume
1.091558712534E+21
Height
9899916.3722533