20107987 is an odd 8-digits composite number following 20107986
and preceding 20107988 . In scientific notation, it is written as 2.0107987 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20005720 positive integers (up to 20107987) that are relatively prime to 20107987.
20107987 has 4 divisors, whose sum is 20210256
The reverse of 20107987 is 78970102
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred seven thousand nine hundred eighty-seven
Scientific notation
2.0107987 × 10^7
Engineering notation
2.0107987 × 10^6
Prime Factorization
197 × 102071
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20107987
Product of the distinct prime numbers
The prime factorization of 20107987 is 197 × 102071.
Since it has a total of 2 prime factors.
2 , 6 , 15 , 32 , 86 , 522 , 9440 , 1928 , 37665 , 51461 , 852047 , 158742 , 5006409 , 8135461 , 81102800 , 17635388 , 692152754 , 636118439 , 3305121349 , 5109011414
n×2
40215974
n×3
60323961
n×4
80431948
n×5
100539935
n÷2
10053993.5
n÷3
6702662.3333333
n÷3
5026996.75
n÷5
4021597.4
n2
404331141192169
n3
8.1302853307873E+21
n4
1.6348367173776E+29
n5
3.2873275460152E+36
2 √n
4484.1930154711
3 √n
271.9294213865
4 √n
66.964117372449
5 √n
28.885089607876
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
-20107986
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 20107987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20107987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101101001011010011
3
Ternary
1101211120222021
4
Quaternary
1030231023103
5
Quinary
20121423422
6
Senary
1554552311
8
Octal
114551323
10
Decimal
20107987
12
Duodecimal
6898697
16
Hexadecimal
132d2d3
20
Vigesimal
65d9j7
36
Base36
byzf7
md5
fc604acd1142507fc46ae058efac6290
sha1
e7e688485a4990d3529e12be1ba1dc9020b292fa
sha256
c6003f20364512412abec2051703606b7fe226246f19110ab8bf289330636122
sha512
67629528010a4e0accb3431ae18c22b5fd99d6a3cb4daf470222a9e25258b3cfccabd4069b62fe1e5096f5fcfb7e5f721beb566abf9e66052804f8453f92ab88
ripemd-160
4431163c719e70cb7f9718fed40998808ea56c7b
Diameter
40215974
Circumference
126342208.47536
Area
1.2702437427869E+15
Volume
3.405605955572E+22
Surface area
5.0809749711476E+15
Circumference
126342208.47536
Perimeter
80431948
Area
404331141192169
Diagonal
28436987.927422
Surface area
2425986847153014
Volume
8.1302853307873E+21
Space diagonal
34828055.121934
Perimeter
60323961
Area
1.7508051990679E+14
Altitude
17414027.560967
Surface area
1.7508051990679E+14
Volume
9.5816331506354E+20
Height
9478995.9758073