20138894 is an even 8-digits composite number following 20138893
and preceding 20138895 . In scientific notation, it is written as 2.0138894 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 10069446 positive integers (up to 20138894) that are relatively prime to 20138894.
20138894 has 4 divisors, whose sum is 30208344
The reverse of 20138894 is 49883102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million one hundred thirty-eight thousand eight hundred ninety-four
Scientific notation
2.0138894 × 10^7
Engineering notation
2.0138894 × 10^6
Prime Factorization
2 × 10069447
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20138894
Product of the distinct prime numbers
The prime factorization of 20138894 is 2 × 10069447.
Since it has a total of 2 prime factors.
4 , 9 , 71 , 44 , 705 , 685 , 9181 , 8333 , 94117 , 47100 , 96175 , 851736 , 8086134 , 690807 , 58476129 , 95542121 , 733847090 , 991556645 , 3494660390 , 1472831513
n×2
40277788
n×3
60416682
n×4
80555576
n×5
100694470
n÷2
10069447
n÷3
6712964.6666667
n÷3
5034723.5
n÷5
4027778.8
n2
405575051543236
n3
8.1678329720738E+21
n4
1.644911224343E+29
n5
3.3126692786454E+36
2 √n
4487.6379087444
3 √n
272.06867318796
4 √n
66.989834368689
5 √n
28.893963724299
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
-20138893
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 20138894 can be divided by 4 positive divisors.
The sum of these divisors (counting 20138894) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100101110001110
3
Ternary
1101220011100222
4
Quaternary
1030310232032
5
Quinary
20123421034
6
Senary
1555351342
8
Octal
114645616
10
Decimal
20138894
12
Duodecimal
68b2552
16
Hexadecimal
1334b8e
20
Vigesimal
65h74e
36
Base36
bzn9q
md5
6d759139b019ca9296bf7eac40b5c62f
sha1
498f1ebee9d833a5fee8a2b20c882d5551a0ccd1
sha256
c27d49723a75adf17a63ad208e377e6278fcaa43b6e9486b61beb5e1886ecbab
sha512
df55267d92fb047fbf7ec83e1b301358b3845124d0056a84f1139dec1cb8dd70a280b2ef7ba6e2d2fc7967baff418189fccc558ca88704b240a23abd398eacb1
ripemd-160
e7c407287e7dd0c14da637060f26239868d4a8d7
Diameter
40277788
Circumference
126536402.88365
Area
1.2741516024075E+15
Volume
3.4213338747754E+22
Surface area
5.0966064096301E+15
Circumference
126536402.88365
Perimeter
80555576
Area
405575051543236
Diagonal
28480697.025994
Surface area
2433450309259416
Volume
8.1678329720738E+21
Space diagonal
34881587.616244
Perimeter
60416682
Area
1.7561914888881E+14
Altitude
17440793.808122
Surface area
1.7561914888881E+14
Volume
9.6258834702541E+20
Height
9493565.6753314