20145505 is an odd 8-digits composite number following 20145504
and preceding 20145506 . In scientific notation, it is written as 2.0145505 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 15596400 positive integers (up to 20145505) that are relatively prime to 20145505.
20145505 has 8 divisors, whose sum is 24954624
The reverse of 20145505 is 50554102
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred forty-five thousand five hundred five
Scientific notation
2.0145505 × 10^7
Engineering notation
2.0145505 × 10^6
Prime Factorization
5 × 31 × 129971
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20145505
Product of the distinct prime numbers
The prime factorization of 20145505 is 5 × 31 × 129971.
Since it has a total of 3 prime factors.
7 , 1 , 84 , 7 , 164 , 266 , 6867 , 5390 , 32508 , 71750 , 178273 , 100878 , 8460424 , 5682533 , 55507438 , 82712502 , 826713635 , 110307517 , 29103365 , 520859073
n×2
40291010
n×3
60436515
n×4
80582020
n×5
100727525
n÷2
10072752.5
n÷3
6715168.3333333
n÷3
5036376.25
n÷5
4029101
n2
405841371705025
n3
8.1758793828904E+21
n4
1.6470721898742E+29
n5
3.3181101036471E+36
2 √n
4488.37442734
3 √n
272.09844061578
4 √n
66.995331384657
5 √n
28.895860481061
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
-20145504
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 20145505 can be divided by 8 positive divisors.
The sum of these divisors (counting 20145505) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110110010101100001
3
Ternary
1101220111102211
4
Quaternary
1030312111201
5
Quinary
20124124010
6
Senary
1555442121
8
Octal
114662541
10
Decimal
20145505
12
Duodecimal
68b6341
16
Hexadecimal
1336561
20
Vigesimal
65i3f5
36
Base36
bzsdd
md5
f9e0c050a11f34e646bc901cad5ed962
sha1
07f8a77e216b8386e88408fc4dd546a0523e72a9
sha256
36711d97434b62721d3200e157bd052f62fadc27f8465bc036bffc5bad878137
sha512
2d22c5c2b79e9e4c3e07130ca640ee75e95284cf74017f3e6d54aafaafe46a0e0325ef2a37e9f5c980eb9773979189515a44f6222b3bdbe814fd8fd70159e842
ripemd-160
8b447d54b7891f5acbae20a6d87954f68396efb3
Diameter
40291010
Circumference
126577941.02171
Area
1.2749882718713E+15
Volume
3.4247043474566E+22
Surface area
5.0999530874852E+15
Circumference
126577941.02171
Perimeter
80582020
Area
405841371705025
Diagonal
28490046.391855
Surface area
2435048230230150
Volume
8.1758793828904E+21
Space diagonal
34893038.204133
Perimeter
60436515
Area
1.7573446890164E+14
Altitude
17446519.102066
Surface area
1.7573446890164E+14
Volume
9.6353662563419E+20
Height
9496682.1306183