20145290 is an even 8-digits composite number following 20145289
and preceding 20145291 . In scientific notation, it is written as 2.0145290 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 7325120 positive integers (up to 20145290) that are relatively prime to 20145290.
20145290 has 16 divisors, whose sum is 33566400
The reverse of 20145290 is 09254102
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred forty-five thousand two hundred ninety
Scientific notation
2.0145290 × 10^7
Engineering notation
2.0145290 × 10^6
Prime Factorization
2 × 55 × 11 × 16649
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20145290
Product of the distinct prime numbers
The prime factorization of 20145290 is 2 × 55 × 11 × 16649.
Since it has a total of 4 prime factors.
5 , 4 , 82 , 65 , 248 , 38 , 1180 , 5799 , 85263 , 43869 , 745685 , 642450 , 5074865 , 2791105 , 89859475 , 98095081 , 89582134 , 387763655 , 4244591490 , 6693091914
n×2
40290580
n×3
60435870
n×4
80581160
n×5
100726450
n÷2
10072645
n÷3
6715096.6666667
n÷3
5036322.5
n÷5
4029058
n2
405832709184100
n3
8.1756176179994E+21
n4
1.6470018784371E+29
n5
3.3179330471659E+36
2 √n
4488.3504765114
3 √n
272.0974726352
4 √n
66.995152634436
5 √n
28.895798803416
1 , 2 , 11 , 22 , 55 , 110 , 605 , 1210 , 16649 , 33298 , 183139 , 366278 , 915695 , 1831390 , 10072645 , 20145290
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20145289
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20145290 can be divided by 16 positive divisors.
The sum of these divisors (counting 20145290) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110110010010001010
3
Ternary
1101220111010212
4
Quaternary
1030312102022
5
Quinary
20124122130
6
Senary
1555441122
8
Octal
114662212
10
Decimal
20145290
12
Duodecimal
68b61a2
16
Hexadecimal
133648a
20
Vigesimal
65i34a
36
Base36
bzs7e
md5
94877abcefd6658125dc602554ba9dd9
sha1
bd6085b00f46030c6b0ca0b317c7cab66db0cb99
sha256
f1cedcaff4738c24f542006b977c337a96f315ed99d5962e54772000e48bdd00
sha512
0854b28dcb903ef2e3c8932eb6e3e7f684ee73d59df231fadcd00da6094250271bc5077c08157afe6f27240d1027a176fca76638fd830523889c96661b82a920
ripemd-160
7dbec54c364c6f9468c1233e4e3f88db6238cc30
Diameter
40290580
Circumference
126576590.13687
Area
1.2749610577592E+15
Volume
3.4245946996355E+22
Surface area
5.0998442310368E+15
Circumference
126576590.13687
Perimeter
80581160
Area
405832709184100
Diagonal
28489742.335939
Surface area
2434996255104600
Volume
8.1756176179994E+21
Space diagonal
34892665.813209
Perimeter
60435870
Area
1.7573071792005E+14
Altitude
17446332.906605
Surface area
1.7573071792005E+14
Volume
9.6350577634593E+20
Height
9496580.7786464