20079981 is an odd 8-digits composite number following 20079980
and preceding 20079982 . In scientific notation, it is written as 2.0079981 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 6 positive divisors.
There are 13386600 positive integers (up to 20079981) that are relatively prime to 20079981.
20079981 has 6 divisors, whose sum is 22559082
The reverse of 20079981 is 18997002
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million seventy-nine thousand nine hundred eighty-one
Scientific notation
2.0079981 × 10^7
Engineering notation
2.0079981 × 10^6
Prime Factorization
9 × 9 × 247901
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2231109
Product of the distinct prime numbers
The prime factorization of 20079981 is 9 × 9 × 247901.
Since it has a total of 3 prime factors.
9 , 6 , 22 , 66 , 859 , 305 , 6702 , 9005 , 8908 , 31909 , 229223 , 330731 , 964541 , 7806069 , 54452127 , 36217198 , 12691370 , 392629822 , 7410032857 , 4144949823
n×2
40159962
n×3
60239943
n×4
80319924
n×5
100399905
n÷2
10039990.5
n÷3
6693327
n÷3
5019995.25
n÷5
4015996.2
n2
403205636960361
n3
8.0963615292569E+21
n4
1.6257478567661E+29
n5
3.2644986074654E+36
2 √n
4481.0691804524
3 √n
271.80311678662
4 √n
66.940788615405
5 √n
28.877039007132
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20079980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20079981 can be divided by 6 positive divisors.
The sum of these divisors (counting 20079981) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100100110010101101101
3
Ternary
1101210011120000
4
Quaternary
1030212111231
5
Quinary
20120024411
6
Senary
1554214513
8
Octal
114462555
10
Decimal
20079981
12
Duodecimal
6884439
16
Hexadecimal
132656d
20
Vigesimal
659jj1
36
Base36
bydt9
md5
a275447dc1297c1d38459cbd087fdada
sha1
445f1482d6f9fd1a35bb4c9d7a1ccf033ef09e03
sha256
297296d4ccc6041152655fef2d18a56468c26d1c2d5331d7a0dc0b988635411a
sha512
40ef4c78f01306f9906dd7e856a6ea833e99304f4b55818ca009b44559644c378db9f94b912b8c197525a4466a8c828aa5cc04b22656788b7bac6a9629f01552
ripemd-160
3aba727e6be92f9a47c1946db27137443980e404
Diameter
40159962
Circumference
126166241.58765
Area
1.2667078669607E+15
Volume
3.3913959868161E+22
Surface area
5.0668314678427E+15
Circumference
126166241.58765
Perimeter
80319924
Area
403205636960361
Diagonal
28397381.462394
Surface area
2419233821762166
Volume
8.0963615292569E+21
Space diagonal
34779547.307018
Perimeter
60239943
Area
1.7459316227838E+14
Altitude
17389773.653509
Surface area
1.7459316227838E+14
Volume
9.5416535671258E+20
Height
9465793.820798