20173981 is an odd 8-digits composite number following 20173980
and preceding 20173982 . In scientific notation, it is written as 2.0173981 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 19843200 positive integers (up to 20173981) that are relatively prime to 20173981.
20173981 has 4 divisors, whose sum is 20504764
The reverse of 20173981 is 18937102
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred seventy-three thousand nine hundred eighty-one
Scientific notation
2.0173981 × 10^7
Engineering notation
2.0173981 × 10^6
Prime Factorization
61 × 330721
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20173981
Product of the distinct prime numbers
The prime factorization of 20173981 is 61 × 330721.
Since it has a total of 2 prime factors.
3 , 1 , 44 , 94 , 357 , 605 , 9 , 3489 , 51086 , 53299 , 627819 , 410213 , 7813973 , 106902 , 96456080 , 32516790 , 52556588 , 369398071 , 4937815683 , 1142472056
n×2
40347962
n×3
60521943
n×4
80695924
n×5
100869905
n÷2
10086990.5
n÷3
6724660.3333333
n÷3
5043495.25
n÷5
4034796.2
n2
406989509388361
n3
8.2105986296001E+21
n4
1.6564046075218E+29
n5
3.3416275080457E+36
2 √n
4491.5455023856
3 √n
272.22658545153
4 √n
67.018993594246
5 √n
28.904024820243
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
-20173980
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 20173981 can be divided by 4 positive divisors.
The sum of these divisors (counting 20173981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111101010010011101
3
Ternary
1101221221111111
4
Quaternary
1030331102131
5
Quinary
20131031411
6
Senary
2000222021
8
Octal
114752235
10
Decimal
20173981
12
Duodecimal
690a911
16
Hexadecimal
133d49d
20
Vigesimal
661ej1
36
Base36
c0ecd
md5
be7ae4388094547f011a26530668d348
sha1
e9cd6ac7c5d176ac1674a82831eddddc92d01513
sha256
fab43d474b729a6c0ca92a9914a50428fc60b04a892be00880a8a2e2c0006bb9
sha512
fec530b2bf9a48f64046819e94173f43530baa632cbe95aac7b57f75d244b9495112f5186f2a6e1cc0ad340a7cd77a4c3110e9d20536e0baaa1bda057c8f9cf2
ripemd-160
0035fcc6cb52d920339a9dfc4e12166a7fb46053
Diameter
40347962
Circumference
126756861.00652
Area
1.2785952527826E+15
Volume
3.4392475115102E+22
Surface area
5.1143810111304E+15
Circumference
126756861.00652
Perimeter
80695924
Area
406989509388361
Diagonal
28530317.537257
Surface area
2441937056330166
Volume
8.2105986296001E+21
Space diagonal
34942360.082929
Perimeter
60521943
Area
1.7623162710204E+14
Altitude
17471180.041465
Surface area
1.7623162710204E+14
Volume
9.6762832809854E+20
Height
9510105.8457524