20138971 is an odd 8-digits composite number following 20138970
and preceding 20138972 . In scientific notation, it is written as 2.0138971 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20034432 positive integers (up to 20138971) that are relatively prime to 20138971.
20138971 has 4 divisors, whose sum is 20243512
The reverse of 20138971 is 17983102
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred thirty-eight thousand nine hundred seventy-one
Scientific notation
2.0138971 × 10^7
Engineering notation
2.0138971 × 10^6
Prime Factorization
193 × 104347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20138971
Product of the distinct prime numbers
The prime factorization of 20138971 is 193 × 104347.
Since it has a total of 2 prime factors.
10 , 10 , 38 , 90 , 838 , 932 , 7035 , 1025 , 82161 , 99000 , 94140 , 919490 , 9045884 , 934290 , 69884514 , 12995311 , 739713812 , 664339601 , 7729344812 , 9720135993
n×2
40277942
n×3
60416913
n×4
80555884
n×5
100694855
n÷2
10069485.5
n÷3
6712990.3333333
n÷3
5034742.75
n÷5
4027794.2
n2
405578152938841
n3
8.1679266602689E+21
n4
1.6449363814128E+29
n5
3.3127326082118E+36
2 √n
4487.6464878598
3 √n
272.06901993427
4 √n
66.989898401623
5 √n
28.893985819175
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
-20138970
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 20138971 can be divided by 4 positive divisors.
The sum of these divisors (counting 20138971) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100101111011011
3
Ternary
1101220011110211
4
Quaternary
1030310233123
5
Quinary
20123421341
6
Senary
1555351551
8
Octal
114645733
10
Decimal
20138971
12
Duodecimal
68b25b7
16
Hexadecimal
1334bdb
20
Vigesimal
65h78b
36
Base36
bznbv
md5
7ed79f35ff7194f292ccbfd059873c24
sha1
3923425b87d46be15ea8d00b3b50ac37772152d1
sha256
027177066578a51520906a7723741f9b97008b0f1b30293a476daebf1c18060e
sha512
06fee26c600bf1b42c7a226536b9840e90a323a36e3d46a4916c7b005bd6e9328c5da2be4818206ec39127cef2711549f23b2601ab576667ca32b9da3bc4cc6c
ripemd-160
07181b361ac8651ce0684a7c269ecacb4cd2ee60
Diameter
40277942
Circumference
126536886.68892
Area
1.2741613457292E+15
Volume
3.4213731187948E+22
Surface area
5.0966453829167E+15
Circumference
126536886.68892
Perimeter
80555884
Area
405578152938841
Diagonal
28480805.920438
Surface area
2433468917633046
Volume
8.1679266602689E+21
Space diagonal
34881720.984156
Perimeter
60416913
Area
1.756204918325E+14
Altitude
17440860.492078
Surface area
1.756204918325E+14
Volume
9.6259938828509E+20
Height
9493601.9734795