20145481 is an odd 8-digits composite number following 20145480
and preceding 20145482 . In scientific notation, it is written as 2.0145481 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20034000 positive integers (up to 20145481) that are relatively prime to 20145481.
20145481 has 4 divisors, whose sum is 20256964
The reverse of 20145481 is 18454102
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred forty-five thousand four hundred eighty-one
Scientific notation
2.0145481 × 10^7
Engineering notation
2.0145481 × 10^6
Prime Factorization
181 × 111301
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145481
Product of the distinct prime numbers
The prime factorization of 20145481 is 181 × 111301.
Since it has a total of 2 prime factors.
5 , 10 , 18 , 29 , 879 , 69 , 8621 , 4847 , 23317 , 54484 , 262558 , 826310 , 7767031 , 8871164 , 62077472 , 53372684 , 831277339 , 898842717 , 5243146268 , 3842942064
n×2
40290962
n×3
60436443
n×4
80581924
n×5
100727405
n÷2
10072740.5
n÷3
6715160.3333333
n÷3
5036370.25
n÷5
4029096.2
n2
405840404721361
n3
8.1758501623465E+21
n4
1.647064341044E+29
n5
3.3180903388279E+36
2 √n
4488.3717537655
3 √n
272.09833256247
4 √n
66.995311431215
5 √n
28.895853596141
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
-20145480
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 20145481 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145481) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010101001001
3
Ternary
1101220111101221
4
Quaternary
1030312111021
5
Quinary
20124123411
6
Senary
1555442041
8
Octal
114662511
10
Decimal
20145481
12
Duodecimal
68b6321
16
Hexadecimal
1336549
20
Vigesimal
65i3e1
36
Base36
bzscp
md5
ccb0821d3fc18e1be5b57330d57bbd2f
sha1
a635bf899a88cdb401b47dae3fd23e2a1eaf0121
sha256
f5cae5be70a89f5637e9c6e302a2ffbfe18770afe0e966c7fc976de092d522b6
sha512
a84861776553b2f226c136e5970c964dca33372e3e1a2c25108cd810e9264ac90301461155645ae8ef3997cd3cb9de2060bf9882c7401f929ccf85a80535082d
ripemd-160
67d3d33e808ca5d80088eb40605b498e8e65bc25
Diameter
40290962
Circumference
126577790.22527
Area
1.2749852340025E+15
Volume
3.4246921075838E+22
Surface area
5.0999409360101E+15
Circumference
126577790.22527
Perimeter
80581924
Area
405840404721361
Diagonal
28490012.45073
Surface area
2435042428328166
Volume
8.1758501623465E+21
Space diagonal
34892996.634913
Perimeter
60436443
Area
1.7573405018543E+14
Altitude
17446498.317457
Surface area
1.7573405018543E+14
Volume
9.6353318196006E+20
Height
9496670.8169098