20120985 is an odd 8-digits composite number following 20120984
and preceding 20120986 . In scientific notation, it is written as 2.0120985 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 10731168 positive integers (up to 20120985) that are relatively prime to 20120985.
20120985 has 8 divisors, whose sum is 26828040
The reverse of 20120985 is 58902102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred twenty thousand nine hundred eighty-five
Scientific notation
2.0120985 × 10^7
Engineering notation
2.0120985 × 10^6
Prime Factorization
5 × 9 × 447133
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20120985
Product of the distinct prime numbers
The prime factorization of 20120985 is 5 × 9 × 447133.
Since it has a total of 3 prime factors.
5 , 6 , 66 , 7 , 471 , 167 , 959 , 5616 , 47952 , 99443 , 703523 , 215928 , 5860881 , 4810598 , 22405770 , 31083122 , 621655426 , 924225554 , 9095259329 , 4593962151
n×2
40241970
n×3
60362955
n×4
80483940
n×5
100604925
n÷2
10060492.5
n÷3
6706995
n÷3
5030246.25
n÷5
4024197
n2
404854037370225
n3
8.1460620131157E+21
n4
1.6390679157497E+29
n5
3.2979660946781E+36
2 √n
4485.6420945055
3 √n
271.98800138104
4 √n
66.974936315801
5 √n
28.88882296373
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
-20120984
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 20120985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20120985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000010110011001
3
Ternary
1101212020210200
4
Quaternary
1030300112121
5
Quinary
20122332420
6
Senary
1555132413
8
Octal
114602631
10
Decimal
20120985
12
Duodecimal
68a4109
16
Hexadecimal
1330599
20
Vigesimal
65f295
36
Base36
bz9g9
md5
ee9ec3e4957daa840063e070e88c2245
sha1
2ac844eba650a53661f328b242070a086974b686
sha256
8b2c8f118e0d81cd78cd9f9ce3a31f59cbcb63959b28d4d48e7a99bb610d7f28
sha512
0a12a006f7e6efa66e27a9067d2c49194abbc1fa4a62b97b48c24e383c3953f80d63bdf77fc6ad0ff948c58bd08eee3fe3ddc714590393f5c01c3384227397eb
ripemd-160
d6014a1188d2c561605de1fef512328fb44521b9
Diameter
40241970
Circumference
126423877.31798
Area
1.2718864695785E+15
Volume
3.4122144768122E+22
Surface area
5.0875458783139E+15
Circumference
126423877.31798
Perimeter
80483940
Area
404854037370225
Diagonal
28455369.875306
Surface area
2429124224221350
Volume
8.1460620131157E+21
Space diagonal
34850568.318331
Perimeter
60362955
Area
1.7530694059365E+14
Altitude
17425284.159166
Surface area
1.7530694059365E+14
Volume
9.6002261490671E+20
Height
9485123.2917685