20091385 is an odd 8-digits composite number following 20091384
and preceding 20091386 . In scientific notation, it is written as 2.0091385 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 16073104 positive integers (up to 20091385) that are relatively prime to 20091385.
20091385 has 4 divisors, whose sum is 24109668
The reverse of 20091385 is 58319002
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million ninety-one thousand three hundred eighty-five
Scientific notation
2.0091385 × 10^7
Engineering notation
2.0091385 × 10^6
Prime Factorization
5 × 4018277
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20091385
Product of the distinct prime numbers
The prime factorization of 20091385 is 5 × 4018277.
Since it has a total of 2 prime factors.
2 , 2 , 90 , 98 , 520 , 828 , 6345 , 9881 , 28784 , 44147 , 642709 , 407179 , 3386810 , 5168180 , 24930943 , 13981047 , 249326286 , 388509022 , 7603185623 , 7184393541
n×2
40182770
n×3
60274155
n×4
80365540
n×5
100456925
n÷2
10045692.5
n÷3
6697128.3333333
n÷3
5022846.25
n÷5
4018277
n2
403663751218225
n3
8.1101638362696E+21
n4
1.6294442404757E+29
n5
3.273779157143E+36
2 √n
4482.3414640119
3 √n
271.85456199029
4 √n
66.950290992735
5 √n
28.880318282821
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
-20091384
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 20091385 can be divided by 4 positive divisors.
The sum of these divisors (counting 20091385) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101001000111111001
3
Ternary
1101210202012101
4
Quaternary
1030221013321
5
Quinary
20120411020
6
Senary
1554343401
8
Octal
114510771
10
Decimal
20091385
12
Duodecimal
688ab61
16
Hexadecimal
13291f9
20
Vigesimal
65b895
36
Base36
bymm1
md5
c6266a39f16659213d33ee9984831803
sha1
55dc4d10b3676741d6af959ecedbceda16f06df6
sha256
d730036ee248747291cdde1fa33e69f6656332a3165084c483156f064a5a483a
sha512
fd4f9a5f72fbbe5f33b3f5bb63f5fc6f10e47796f363f329bb1997b715109ba7e46afed3bb441ac1ed4a9343d80d5b7f0a06fa25ed0488b004f954bcab8e15d4
ripemd-160
a1b4f01e591a827f7b1fa81b6750968703a767a5
Diameter
40182770
Circumference
126237895.03289
Area
1.2681470753477E+15
Volume
3.3971774836579E+22
Surface area
5.0725883013907E+15
Circumference
126237895.03289
Perimeter
80365540
Area
403663751218225
Diagonal
28413509.153859
Surface area
2421982507309350
Volume
8.1101638362696E+21
Space diagonal
34799299.614427
Perimeter
60274155
Area
1.7479153157095E+14
Altitude
17399649.807214
Surface area
1.7479153157095E+14
Volume
9.5579197419335E+20
Height
9471169.7179531