21494793 is an odd 8-digits composite number following 21494792
and preceding 21494794 . In scientific notation, it is written as 2.1494793 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 14329860 positive integers (up to 21494793) that are relatively prime to 21494793.
21494793 has 4 divisors, whose sum is 28659728
The reverse of 21494793 is 39749412
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred ninety-four thousand seven hundred ninety-three
Scientific notation
2.1494793 × 10^7
Engineering notation
2.1494793 × 10^6
Prime Factorization
3 × 7164931
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21494793
Product of the distinct prime numbers
The prime factorization of 21494793 is 3 × 7164931.
Since it has a total of 2 prime factors.
2 , 9 , 15 , 49 , 954 , 731 , 5528 , 6916 , 10908 , 76006 , 331505 , 846236 , 3787399 , 952692 , 66810710 , 984068 , 658496529 , 454814781 , 5754121715 , 7705156524
n×2
42989586
n×3
64484379
n×4
85979172
n×5
107473965
n÷2
10747396.5
n÷3
7164931
n÷3
5373698.25
n÷5
4298958.6
n2
462026126112849
n3
9.9311559413876E+21
n4
2.1346814121085E+29
n5
4.5884535074219E+36
2 √n
4636.2477284977
3 √n
278.04243870164
4 √n
68.089997271976
5 √n
29.272960951925
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
-21494792
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 21494793 can be divided by 4 positive divisors.
The sum of these divisors (counting 21494793) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111110000001001
3
Ternary
1111110001022110
4
Quaternary
1101333300021
5
Quinary
21000313133
6
Senary
2044412533
8
Octal
121776011
10
Decimal
21494793
12
Duodecimal
7247149
16
Hexadecimal
147fc09
20
Vigesimal
6e6gjd
36
Base36
csphl
md5
6ee736168cf3e2631b5f947620634b70
sha1
1269c18cac98d17f2c0dceee9f38d276a0ec2a1a
sha256
2f2105c808da5fa4c9a80a8f7c386ba9aff72bf11c597c107daea1731506f075
sha512
df9485e9b2ab3ceeb227656d407eac3e9ea6fe42bb4b47427535e0935e842108ce3ca8bdd3bf13e181348b073feb04b09b0e08b68ca27d8e181bcb57fedd8f78
ripemd-160
0e837a79561f02360a9fadeed16bedc24ede7d7f
Diameter
42989586
Circumference
135055767.55847
Area
1.4514978835627E+15
Volume
4.159952872949E+22
Surface area
5.8059915342507E+15
Circumference
135055767.55847
Perimeter
85979172
Area
462026126112849
Diagonal
30398227.781002
Surface area
2772156756677094
Volume
9.9311559413876E+21
Space diagonal
37230073.574176
Perimeter
64484379
Area
2.0006318121292E+14
Altitude
18615036.787088
Surface area
2.0006318121292E+14
Volume
1.1703979518627E+21
Height
10132742.593667