20091388 is an even 8-digits composite number following 20091387
and preceding 20091389 . In scientific notation, it is written as 2.0091388 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 9875312 positive integers (up to 20091388) that are relatively prime to 20091388.
20091388 has 12 divisors, whose sum is 35756280
The reverse of 20091388 is 88319002
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million ninety-one thousand three hundred eighty-eight
Scientific notation
2.0091388 × 10^7
Engineering notation
2.0091388 × 10^6
Prime Factorization
2 × 2 × 59 × 85133
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10045694
Product of the distinct prime numbers
The prime factorization of 20091388 is 2 × 2 × 59 × 85133.
Since it has a total of 4 prime factors.
2 , 10 , 39 , 50 , 685 , 595 , 1953 , 6771 , 33605 , 43881 , 649641 , 386592 , 2508982 , 7649425 , 60083070 , 72652644 , 303379887 , 754129523 , 3618737068 , 773684140
n×2
40182776
n×3
60274164
n×4
80365552
n×5
100456940
n÷2
10045694
n÷3
6697129.3333333
n÷3
5022847
n÷5
4018277.6
n2
403663871766544
n3
8.1101674692439E+21
n4
1.6294452136956E+29
n5
3.2737816013101E+36
2 √n
4482.3417986584
3 √n
271.85457552119
4 √n
66.950293491951
5 √n
28.880319145289
1 , 2 , 4 , 59 , 118 , 236 , 85133 , 170266 , 340532 , 5022847 , 10045694 , 20091388
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20091387
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20091388 can be divided by 12 positive divisors.
The sum of these divisors (counting 20091388) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100101001000111111100
3
Ternary
1101210202012111
4
Quaternary
1030221013330
5
Quinary
20120411023
6
Senary
1554343404
8
Octal
114510774
10
Decimal
20091388
12
Duodecimal
688ab64
16
Hexadecimal
13291fc
20
Vigesimal
65b898
36
Base36
bymm4
md5
089a10b5bbfee7f07a2cf3b4241a92b5
sha1
46149841e98d9245619bfff7e6e139fc565e4e91
sha256
84395cb19d352d93edc2d6938b24fdc817834c4165d2b0a933191b66f7d49b21
sha512
0a08e28188ca408a34bf36c4e9db3ff423b167c6d317b53c83c4b41f18541ccc3588f8b36b5e5ff7056759930e465a55320d63ab6207d67e7d357bab501069b5
ripemd-160
e2efd4ed0fb601f552d057a516bea433420c496a
Diameter
40182776
Circumference
126237913.88244
Area
1.2681474540614E+15
Volume
3.3971790054346E+22
Surface area
5.0725898162455E+15
Circumference
126237913.88244
Perimeter
80365552
Area
403663871766544
Diagonal
28413513.3965
Surface area
2421983230599264
Volume
8.1101674692439E+21
Space diagonal
34799304.81058
Perimeter
60274164
Area
1.7479158376991E+14
Altitude
17399652.40529
Surface area
1.7479158376991E+14
Volume
9.5579240234348E+20
Height
9471171.1321667