21494851 is an odd 8-digits composite number following 21494850
and preceding 21494852 . In scientific notation, it is written as 2.1494851 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 17340288 positive integers (up to 21494851) that are relatively prime to 21494851.
21494851 has 8 divisors, whose sum is 26010720
The reverse of 21494851 is 15849412
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety-four thousand eight hundred fifty-one
Scientific notation
2.1494851 × 10^7
Engineering notation
2.1494851 × 10^6
Prime Factorization
17 × 7 × 180629
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21494851
Product of the distinct prime numbers
The prime factorization of 21494851 is 17 × 7 × 180629.
Since it has a total of 3 prime factors.
8 , 2 , 35 , 88 , 780 , 555 , 9010 , 5769 , 27911 , 34535 , 32241 , 807151 , 1696556 , 4943200 , 42103494 , 65115226 , 445723945 , 519730255 , 9750027651 , 8275582305
n×2
42989702
n×3
64484553
n×4
85979404
n×5
107474255
n÷2
10747425.5
n÷3
7164950.3333333
n÷3
5373712.75
n÷5
4298970.2
n2
462028619512201
n3
9.9312363341505E+21
n4
2.1347044524835E+29
n5
4.5885154135169E+36
2 √n
4636.2539835518
3 √n
278.04268878464
4 √n
68.090043204215
5 √n
29.272976749518
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
-21494850
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 21494851 can be divided by 8 positive divisors.
The sum of these divisors (counting 21494851) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111110001000011
3
Ternary
1111110001101121
4
Quaternary
1101333301003
5
Quinary
21000313401
6
Senary
2044413111
8
Octal
121776103
10
Decimal
21494851
12
Duodecimal
7247197
16
Hexadecimal
147fc43
20
Vigesimal
6e6h2b
36
Base36
cspj7
md5
7a17c575ee4047e80214ae71b1ec9931
sha1
9a993d82a20c54458851d8ee7b66e906b5498e91
sha256
dd28a6f7d8eacfa67dbe6cd419377b2bbe919694211967132ca30c0d19982776
sha512
e67fa2ce69d59207f7894c832cbbb0220c04914373116a82517a6c480add749e21f561f95ee5894f8c9c759c8478888610265153a48e86f8b3f0c98ba3dac165
ripemd-160
1349da5af0dcf777dfaef9837811efc2d26f0130
Diameter
42989702
Circumference
135056131.98321
Area
1.4515057168078E+15
Volume
4.1599865477908E+22
Surface area
5.8060228672311E+15
Circumference
135056131.98321
Perimeter
85979404
Area
462028619512201
Diagonal
30398309.805389
Surface area
2772171717073206
Volume
9.9312363341505E+21
Space diagonal
37230174.033123
Perimeter
64484553
Area
2.0006426088651E+14
Altitude
18615087.016561
Surface area
2.0006426088651E+14
Volume
1.1704074262407E+21
Height
10132769.93513