20295981 is an odd 8-digits composite number following 20295980
and preceding 20295982 . In scientific notation, it is written as 2.0295981 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 13307760 positive integers (up to 20295981) that are relatively prime to 20295981.
20295981 has 16 divisors, whose sum is 30563520
The reverse of 20295981 is 18959202
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million two hundred ninety-five thousand nine hundred eighty-one
Scientific notation
2.0295981 × 10^7
Engineering notation
2.0295981 × 10^6
Prime Factorization
3 × 9 × 61 × 12323
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20295981
Product of the distinct prime numbers
The prime factorization of 20295981 is 3 × 9 × 61 × 12323.
Since it has a total of 4 prime factors.
5 , 8 , 91 , 98 , 575 , 257 , 3928 , 462 , 16095 , 14446 , 109173 , 445103 , 8523748 , 7523033 , 86163493 , 45296262 , 769613816 , 768408145 , 4333624105 , 5046795891
n×2
40591962
n×3
60887943
n×4
81183924
n×5
101479905
n÷2
10147990.5
n÷3
6765327
n÷3
5073995.25
n÷5
4059196.2
n2
411926844752361
n3
8.3604594144839E+21
n4
1.6968372542764E+29
n5
3.4438976672885E+36
2 √n
4505.106103079
3 √n
272.77423673045
4 √n
67.12008718021
5 √n
28.938899363847
1 , 3 , 9 , 27 , 61 , 183 , 549 , 1647 , 12323 , 36969 , 110907 , 332721 , 751703 , 2255109 , 6765327 , 20295981
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20295980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20295981 can be divided by 16 positive divisors.
The sum of these divisors (counting 20295981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101011011000100101101
3
Ternary
1102012010212000
4
Quaternary
1031123010231
5
Quinary
20143432411
6
Senary
2003002513
8
Octal
115330455
10
Decimal
20295981
12
Duodecimal
6969439
16
Hexadecimal
135b12d
20
Vigesimal
66gjj1
36
Base36
c30h9
md5
63b15bd35d3e628ee50bc802697c43cd
sha1
e4d464bd691de4c0060cce9c3c98ef6c24d28c13
sha256
72662089d90e64266c9378ee75587a10cd9b4b6174712440d857d8b5a1bc9485
sha512
f98189f992a668a2c8f506b7a70aad6de8ef6e178fbd6c5160f8efd67f744381df42c674fb8df87e24d26bd2a86ad2869a6796a2e897472d3d2e78b7650857db
ripemd-160
e21e8b17efaf3d32f12fa9c0f9cdcc94fdf08bf9
Diameter
40591962
Circumference
127523409.614
Area
1.2941063492904E+15
Volume
3.5020210502904E+22
Surface area
5.1764253971618E+15
Circumference
127523409.614
Perimeter
81183924
Area
411926844752361
Diagonal
28702851.591867
Surface area
2471561068514166
Volume
8.3604594144839E+21
Space diagonal
35153670.281453
Perimeter
60887943
Area
1.7836955602816E+14
Altitude
17576835.140726
Surface area
1.7836955602816E+14
Volume
9.8528959096941E+20
Height
9567617.1972889