20127989 is an odd 8-digits composite number following 20127988
and preceding 20127990 . In scientific notation, it is written as 2.0127989 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 17252556 positive integers (up to 20127989) that are relatively prime to 20127989.
20127989 has 4 divisors, whose sum is 23003424
The reverse of 20127989 is 98972102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred twenty-seven thousand nine hundred eighty-nine
Scientific notation
2.0127989 × 10^7
Engineering notation
2.0127989 × 10^6
Prime Factorization
7 × 2875427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20127989
Product of the distinct prime numbers
The prime factorization of 20127989 is 7 × 2875427.
Since it has a total of 2 prime factors.
8 , 5 , 35 , 60 , 820 , 646 , 942 , 7679 , 97657 , 71374 , 281373 , 950125 , 5126598 , 2766871 , 28587759 , 73753038 , 403447223 , 458272878 , 8490569907 , 901697176
n×2
40255978
n×3
60383967
n×4
80511956
n×5
100639945
n÷2
10063994.5
n÷3
6709329.6666667
n÷3
5031997.25
n÷5
4025597.8
n2
405135941184121
n3
8.1545717676586E+21
n4
1.6413513083914E+29
n5
3.3037101080438E+36
2 √n
4486.4227397783
3 √n
272.01955687669
4 √n
66.980763953379
5 √n
28.89083389062
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20127988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20127989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20127989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010000011110101
3
Ternary
1101212121102002
4
Quaternary
1030302003311
5
Quinary
20123043424
6
Senary
1555225045
8
Octal
114620365
10
Decimal
20127989
12
Duodecimal
68a8185
16
Hexadecimal
13320f5
20
Vigesimal
65fjj9
36
Base36
bzeut
md5
ea301e8451fc23e299c9243dc34d0b56
sha1
47237190a586bfa7b6105367f77c844eb40fbe66
sha256
4e9e2c340b6782fcbfe6169ef73d73e2658032ff71eba5dc130ca7a49d63d483
sha512
0c422e2570ce5adf65d7e0f73f19e4a79a317551dc8690c51adcf13a3386d7ec80e1ac66faf2c6f56420a576a4b6dd20205f84e61b6c9fc7c6a979fb453a94be
ripemd-160
f69ca3d221f0231d085eff530a0d4ce71ae1ed8f
Diameter
40255978
Circumference
126467884.74787
Area
1.2727720965292E+15
Volume
3.4157790344596E+22
Surface area
5.0910883861169E+15
Circumference
126467884.74787
Perimeter
80511956
Area
405135941184121
Diagonal
28465275.027096
Surface area
2430815647104726
Volume
8.1545717676586E+21
Space diagonal
34862699.602187
Perimeter
60383967
Area
1.7542900852578E+14
Altitude
17431349.801094
Surface area
1.7542900852578E+14
Volume
9.610254990973E+20
Height
9488425.0090322