20145081 is an odd 8-digits composite number following 20145080
and preceding 20145082 . In scientific notation, it is written as 2.0145081 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 12209120 positive integers (up to 20145081) that are relatively prime to 20145081.
20145081 has 8 divisors, whose sum is 29301984
The reverse of 20145081 is 18054102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred forty-five thousand eighty-one
Scientific notation
2.0145081 × 10^7
Engineering notation
2.0145081 × 10^6
Prime Factorization
3 × 11 × 610457
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20145081
Product of the distinct prime numbers
The prime factorization of 20145081 is 3 × 11 × 610457.
Since it has a total of 3 prime factors.
2 , 7 , 88 , 20 , 651 , 755 , 3196 , 5599 , 65861 , 75048 , 9659 , 540390 , 167246 , 688713 , 51656782 , 65332036 , 285053575 , 779398862 , 554200151 , 3311176290
n×2
40290162
n×3
60435243
n×4
80580324
n×5
100725405
n÷2
10072540.5
n÷3
6715027
n÷3
5036270.25
n÷5
4029016.2
n2
405824288496561
n3
8.1753631635306E+21
n4
1.6469335313374E+29
n5
3.3177609390408E+36
2 √n
4488.3271939554
3 √n
272.09653166143
4 √n
66.994978871222
5 √n
28.895738846503
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
-20145080
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 20145081 can be divided by 8 positive divisors.
The sum of these divisors (counting 20145081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110110001110111001
3
Ternary
1101220110212010
4
Quaternary
1030312032321
5
Quinary
20124120311
6
Senary
1555440133
8
Octal
114661671
10
Decimal
20145081
12
Duodecimal
68b6049
16
Hexadecimal
13363b9
20
Vigesimal
65i2e1
36
Base36
bzs1l
md5
8c67c50c0868cbd7f59bac92014d6f41
sha1
76bd074da5cc6a642887768821bd255117874260
sha256
2338d5372e1cc7e1a8c671e6220ebf61c07b6fd0626c47414796d269daea7ec5
sha512
58f3113bfdfa378a193e41f05415d9bc7749f8ebbcc6c8c6b34effe803894ba482a8386b08442ee22077730fb3afbce3dd5d14e2dbcbc6a9cdc7f1fc0b95e123
ripemd-160
d443a98a392dea40629ae2e823fca0cafdefa545
Diameter
40290162
Circumference
126575276.95114
Area
1.2749346033891E+15
Volume
3.4244881139968E+22
Surface area
5.0997384135564E+15
Circumference
126575276.95114
Perimeter
80580324
Area
405824288496561
Diagonal
28489446.765305
Surface area
2434945730979366
Volume
8.1753631635306E+21
Space diagonal
34892303.81459
Perimeter
60435243
Area
1.7572707165538E+14
Altitude
17446151.907295
Surface area
1.7572707165538E+14
Volume
9.634757885992E+20
Height
9496482.2551015