20851449 is an odd 8-digits composite number following 20851448
and preceding 20851450 . In scientific notation, it is written as 2.0851449 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13815360 positive integers (up to 20851449) that are relatively prime to 20851449.
20851449 has 8 divisors, whose sum is 27973152
The reverse of 20851449 is 94415802
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million eight hundred fifty-one thousand four hundred forty-nine
Scientific notation
2.0851449 × 10^7
Engineering notation
2.0851449 × 10^6
Prime Factorization
3 × 163 × 42641
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20851449
Product of the distinct prime numbers
The prime factorization of 20851449 is 3 × 163 × 42641.
Since it has a total of 3 prime factors.
4 , 3 , 99 , 90 , 53 , 936 , 3352 , 5252 , 58137 , 48643 , 879069 , 340375 , 5054843 , 6982497 , 97057550 , 80962515 , 852398178 , 660993603 , 9680888111 , 9678591618
n×2
41702898
n×3
62554347
n×4
83405796
n×5
104257245
n÷2
10425724.5
n÷3
6950483
n÷3
5212862.25
n÷5
4170289.8
n2
434782925399601
n3
9.0658539950406E+21
n4
1.8903619221904E+29
n5
3.9416785212094E+36
2 √n
4566.338686519
3 √n
275.24033645306
4 √n
67.574689688662
5 √n
29.095595345968
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
-20851448
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 20851449 can be divided by 8 positive divisors.
The sum of these divisors (counting 20851449) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111100010101011111001
3
Ternary
1110020100210220
4
Quaternary
1033202223321
5
Quinary
20314221244
6
Senary
2022530253
8
Octal
117425371
10
Decimal
20851449
12
Duodecimal
6b96989
16
Hexadecimal
13e2af9
20
Vigesimal
6a68c9
36
Base36
cex2x
md5
3205852cfb87f495b97fd3b7f6f9ee2e
sha1
82cf791ab2c150d957914690b1bd3b9514ca085c
sha256
1bcda06e3d8bcb762efb4afdb8bf383f49359c66224141a196372212c28573eb
sha512
7e29c536b085b7f8f2b0365a9084febb05f9ea4d1ccb547597439cce25ce93b1629d94f1bb63641d6465894fbf435b9478bee479d71da62088ec407dbcaff8f1
ripemd-160
e201a25b59ba6a5428dd72ddc92b6b162a293a5e
Diameter
41702898
Circumference
131013517.9902
Area
1.3659108443417E+15
Volume
3.797496041245E+22
Surface area
5.4636433773667E+15
Circumference
131013517.9902
Perimeter
83405796
Area
434782925399601
Diagonal
29488401.970931
Surface area
2608697552397606
Volume
9.0658539950406E+21
Space diagonal
36115769.079431
Perimeter
62554347
Area
1.8826652926388E+14
Altitude
18057884.539716
Surface area
1.8826652926388E+14
Volume
1.0684211395234E+21
Height
9829467.3236436