20145085 is an odd 8-digits composite number following 20145084
and preceding 20145086 . In scientific notation, it is written as 2.0145085 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 15102208 positive integers (up to 20145085) that are relatively prime to 20145085.
20145085 has 8 divisors, whose sum is 20470752
The reverse of 20145085 is 58054102
Previous prime number is 683
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred forty-five thousand eighty-five
Scientific notation
2.0145085 × 10^7
Engineering notation
2.0145085 × 10^6
Prime Factorization
85 × 683 × 347
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20145085
Product of the distinct prime numbers
The prime factorization of 20145085 is 85 × 683 × 347.
Since it has a total of 3 prime factors.
10 , 4 , 57 , 49 , 834 , 260 , 5054 , 6947 , 72591 , 58356 , 942022 , 58657 , 4891767 , 4130607 , 46895857 , 59232732 , 5396943 , 654664643 , 8231705098 , 3089698863
n×2
40290170
n×3
60435255
n×4
80580340
n×5
100725425
n÷2
10072542.5
n÷3
6715028.3333333
n÷3
5036271.25
n÷5
4029017
n2
405824449657225
n3
8.175368033423E+21
n4
1.6469348393959E+29
n5
3.3177642329092E+36
2 √n
4488.3276395557
3 √n
272.09654967056
4 √n
66.994982196846
5 √n
28.895739994009
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
-20145084
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 20145085 can be divided by 8 positive divisors.
The sum of these divisors (counting 20145085) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110110001110111101
3
Ternary
1101220110212021
4
Quaternary
1030312032331
5
Quinary
20124120320
6
Senary
1555440141
8
Octal
114661675
10
Decimal
20145085
12
Duodecimal
68b6051
16
Hexadecimal
13363bd
20
Vigesimal
65i2e5
36
Base36
bzs1p
md5
1c8783a19205e9883d82bdd4b08001e9
sha1
5ef333db1167af73d62a85714f6dbb4a5b8f2011
sha256
dd97f6b1a9154f4f29b7bbe4615eeb9a4919170ad867f6f955c5d9644df8504c
sha512
c3bdbc2e712ba234a28774bbd2b7555e63bbf34760a68541286f6ef80de2b4909d530c1499dbf0f28f5bcf392baf1fc836dd109d5e7719f6dc477889c85f6e41
ripemd-160
5e0b3fff0f4cd091a59da2db200c5a4da9278f04
Diameter
40290170
Circumference
126575302.08388
Area
1.2749351096903E+15
Volume
3.4244901538926E+22
Surface area
5.099740438761E+15
Circumference
126575302.08388
Perimeter
80580340
Area
405824449657225
Diagonal
28489452.422159
Surface area
2434946697943350
Volume
8.175368033423E+21
Space diagonal
34892310.742794
Perimeter
60435255
Area
1.7572714144E+14
Altitude
17446155.371397
Surface area
1.7572714144E+14
Volume
9.6347636252152E+20
Height
9496484.1407196