21494747 is an odd 8-digits composite number following 21494746
and preceding 21494748 . In scientific notation, it is written as 2.1494747 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 21184128 positive integers (up to 21494747) that are relatively prime to 21494747.
21494747 has 8 divisors, whose sum is 21807744
The reverse of 21494747 is 74749412
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million four hundred ninety-four thousand seven hundred forty-seven
Scientific notation
2.1494747 × 10^7
Engineering notation
2.1494747 × 10^6
Prime Factorization
113 × 223 × 853
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21494747
Product of the distinct prime numbers
The prime factorization of 21494747 is 113 × 223 × 853.
Since it has a total of 3 prime factors.
5 , 7 , 80 , 49 , 318 , 232 , 4979 , 4199 , 71290 , 89955 , 883444 , 762703 , 9107231 , 936268 , 15342223 , 29193511 , 372112275 , 360706070 , 2309721197 , 2006214749
n×2
42989494
n×3
64484241
n×4
85978988
n×5
107473735
n÷2
10747373.5
n÷3
7164915.6666667
n÷3
5373686.75
n÷5
4298949.4
n2
462024148594009
n3
9.9310921819186E+21
n4
2.1346631388402E+29
n5
4.5884044099596E+36
2 √n
4636.2427675867
3 √n
278.04224035963
4 √n
68.089960842893
5 √n
29.272948422776
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
-21494746
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 21494747 can be divided by 8 positive divisors.
The sum of these divisors (counting 21494747) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111101111011011
3
Ternary
1111110001020202
4
Quaternary
1101333233123
5
Quinary
21000312442
6
Senary
2044412415
8
Octal
121775733
10
Decimal
21494747
12
Duodecimal
724710b
16
Hexadecimal
147fbdb
20
Vigesimal
6e6gh7
36
Base36
cspgb
md5
b876e4fac3e9466ea27ceb8e9a48a5eb
sha1
44f7e29132803137f7ad5732e870926e1111f814
sha256
8f4abcc3f74e9c15882f083195c9346cb3c9d292491a89456b5572dbbcf0c58f
sha512
5efde0c1fb8513f3102c1033f26d01e213fa315f172105458a4d604c9b5f3cd66ae3916613c8276a2097afcb68cbeb6775208b4e2f26f0b51cc906c075c3b6b5
ripemd-160
03249afa7f4024f8e623ce1010064a4c233bc3e6
Diameter
42989494
Circumference
135055478.53194
Area
1.451491671004E+15
Volume
4.1599261654451E+22
Surface area
5.8059666840161E+15
Circumference
135055478.53194
Perimeter
85978988
Area
462024148594009
Diagonal
30398162.727178
Surface area
2772144891564054
Volume
9.9310921819186E+21
Space diagonal
37229993.899839
Perimeter
64484241
Area
2.0006232492214E+14
Altitude
18614996.949919
Surface area
2.0006232492214E+14
Volume
1.1703904377372E+21
Height
10132720.909059