20070981 is an odd 8-digits composite number following 20070980
and preceding 20070982 . In scientific notation, it is written as 2.0070981 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 10795680 positive integers (up to 20070981) that are relatively prime to 20070981.
20070981 has 16 divisors, whose sum is 25612800
The reverse of 20070981 is 18907002
Previous prime number is 1333
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million seventy thousand nine hundred eighty-one
Scientific notation
2.0070981 × 10^7
Engineering notation
2.0070981 × 10^6
Prime Factorization
9 × 7 × 1333 × 239
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20070981
Product of the distinct prime numbers
The prime factorization of 20070981 is 9 × 7 × 1333 × 239.
Since it has a total of 4 prime factors.
2 , 9 , 22 , 10 , 438 , 601 , 8381 , 7731 , 7895 , 29610 , 72686 , 752687 , 109455 , 3221990 , 7686169 , 10448929 , 754722393 , 826940824 , 581720820 , 3933041705
n×2
40141962
n×3
60212943
n×4
80283924
n×5
100354905
n÷2
10035490.5
n÷3
6690327
n÷3
5017745.25
n÷5
4014196.2
n2
402844278302361
n3
8.0854798557654E+21
n4
1.6228351256095E+29
n5
3.2571892972241E+36
2 √n
4480.0648432807
3 √n
271.76250264436
4 √n
66.933286511875
5 √n
28.874449961275
1 , 7 , 9 , 63 , 239 , 1333 , 1673 , 2151 , 9331 , 11997 , 15057 , 83979 , 318587 , 2230109 , 2867283 , 20070981
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
-20070980
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 20070981 can be divided by 16 positive divisors.
The sum of these divisors (counting 20070981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100100100001001000101
3
Ternary
1101202201012200
4
Quaternary
1030210021011
5
Quinary
20114232411
6
Senary
1554105113
8
Octal
114441105
10
Decimal
20070981
12
Duodecimal
687b199
16
Hexadecimal
1324245
20
Vigesimal
658h91
36
Base36
by6v9
md5
405979f62e373f24e803606f1bd611ca
sha1
d8f302ef7459266084541d94ef2ca5e170b345fb
sha256
0d1fce8cef5ace24447e037446975c85feb73edd04d458e401f6f56e3a1fdf9f
sha512
ce5a2b4c245174e48d84be51f27aa595fca5eea0b2729a00e6e19ec098f6a59af23acb808c17236f22c077fb87f7c6146b369013274dfc465857be909c285f06
ripemd-160
4f1c36166f9dd54a425fa282a7302ba0446b2ac9
Diameter
40141962
Circumference
126109692.91988
Area
1.2655726252554E+15
Volume
3.3868378820828E+22
Surface area
5.0622905010215E+15
Circumference
126109692.91988
Perimeter
80283924
Area
402844278302361
Diagonal
28384653.540333
Surface area
2417065669814166
Volume
8.0854798557654E+21
Space diagonal
34763958.84975
Perimeter
60212943
Area
1.7443668938953E+14
Altitude
17381979.424875
Surface area
1.7443668938953E+14
Volume
9.5288293919316E+20
Height
9461551.1801109