20145389 is an odd 8-digits composite number following 20145388
and preceding 20145390 . In scientific notation, it is written as 2.0145389 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 18313980 positive integers (up to 20145389) that are relatively prime to 20145389.
20145389 has 4 divisors, whose sum is 21976800
The reverse of 20145389 is 98354102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred forty-five thousand three hundred eighty-nine
Scientific notation
2.0145389 × 10^7
Engineering notation
2.0145389 × 10^6
Prime Factorization
11 × 1831399
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145389
Product of the distinct prime numbers
The prime factorization of 20145389 is 11 × 1831399.
Since it has a total of 2 prime factors.
2 , 1 , 100 , 100 , 251 , 935 , 8389 , 261 , 41154 , 90149 , 108248 , 595693 , 5151310 , 9391804 , 96307721 , 31095532 , 118398984 , 36384877 , 4454794671 , 7693678024
n×2
40290778
n×3
60436167
n×4
80581556
n×5
100726945
n÷2
10072694.5
n÷3
6715129.6666667
n÷3
5036347.25
n÷5
4029077.8
n2
405836697961321
n3
8.1757381509063E+21
n4
1.6470342541215E+29
n5
3.3180145745602E+36
2 √n
4488.3615050484
3 √n
272.09791835734
4 √n
66.995234942855
5 √n
28.895827203886
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
-20145388
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 20145389 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145389) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010011101101
3
Ternary
1101220111021112
4
Quaternary
1030312103231
5
Quinary
20124123024
6
Senary
1555441405
8
Octal
114662355
10
Decimal
20145389
12
Duodecimal
68b6265
16
Hexadecimal
13364ed
20
Vigesimal
65i399
36
Base36
bzsa5
md5
b5487ed2669ee6881eece5985dd0c14b
sha1
97893a0cd17496de8161d2f611960a53d21626bc
sha256
992f8d5a41b61dcc1635b5904f3e02f376dc3c8653addb2cf4bbc1688f5ea580
sha512
6af77196026ef5eb5c91b48c373306c499aae36e4d0662601bc7c6c5b4b70815e5ac7907c6b1eb8062257ae15230951fa5118b5e2b0ab5c0381cff6807b19b77
ripemd-160
07ce83ed0b5bf2e40ae12bd1207a38007c8d95e0
Diameter
40290778
Circumference
126577212.17222
Area
1.2749735888724E+15
Volume
3.4246451883415E+22
Surface area
5.0998943554897E+15
Circumference
126577212.17222
Perimeter
80581556
Area
405836697961321
Diagonal
28489882.343082
Surface area
2435020187767926
Volume
8.1757381509063E+21
Space diagonal
34892837.286239
Perimeter
60436167
Area
1.7573244511125E+14
Altitude
17446418.64312
Surface area
1.7573244511125E+14
Volume
9.6351998128524E+20
Height
9496627.4476939