20347981 is an odd 8-digits composite number following 20347980
and preceding 20347982 . In scientific notation, it is written as 2.0347981 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 19903488 positive integers (up to 20347981) that are relatively prime to 20347981.
20347981 has 8 divisors, whose sum is 20797560
The reverse of 20347981 is 18974302
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million three hundred forty-seven thousand nine hundred eighty-one
Scientific notation
2.0347981 × 10^7
Engineering notation
2.0347981 × 10^6
Prime Factorization
97 × 89 × 2357
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20347981
Product of the distinct prime numbers
The prime factorization of 20347981 is 97 × 89 × 2357.
Since it has a total of 3 prime factors.
10 , 1 , 59 , 28 , 90 , 882 , 1840 , 4099 , 88957 , 48391 , 853510 , 65806 , 1999775 , 5917463 , 53477661 , 52654051 , 70156662 , 662039222 , 972932262 , 262264433
n×2
40695962
n×3
61043943
n×4
81391924
n×5
101739905
n÷2
10173990.5
n÷3
6782660.3333333
n÷3
5086995.25
n÷5
4069596.2
n2
414040330776361
n3
8.4248847838711E+21
n4
1.714293955094E+29
n5
3.4882420826667E+36
2 √n
4510.8736404382
3 √n
273.00699486074
4 √n
67.163037754692
5 √n
28.953712966016
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20347980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20347981 can be divided by 8 positive divisors.
The sum of these divisors (counting 20347981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101100111110001001101
3
Ternary
1102021210011221
4
Quaternary
1031213301031
5
Quinary
20202113411
6
Senary
2004043341
8
Octal
115476115
10
Decimal
20347981
12
Duodecimal
6993551
16
Hexadecimal
1367c4d
20
Vigesimal
6739j1
36
Base36
c44lp
md5
d5f0bf527239ff27873ee522386fa57d
sha1
110d367817217a7d70f342b741c8884d0c0509fe
sha256
d54395602472c0fd0bdea164f29528367171ef68128458e4e85dfcae943b092d
sha512
044398b0bb78982f4a09e37d3da70fdb6f869a09a5945a6c77053296afac2c466430bf3b53e2324cc8d315c821a02b3015fddaa21f34e01822b22142cc31f891
ripemd-160
ecc4b4466ba39aa2a43b3b2e49102fc82a9da672
Diameter
40695962
Circumference
127850135.24997
Area
1.3007460614569E+15
Volume
3.5290074859133E+22
Surface area
5.2029842458276E+15
Circumference
127850135.24997
Perimeter
81391924
Area
414040330776361
Diagonal
28776390.69711
Surface area
2484241984658166
Volume
8.4248847838711E+21
Space diagonal
35243736.923446
Perimeter
61043943
Area
1.7928472232182E+14
Altitude
17621868.461723
Surface area
1.7928472232182E+14
Volume
9.928821935651E+20
Height
9592130.23237