20787938 is an even 8-digits composite number following 20787937
and preceding 20787939 . In scientific notation, it is written as 2.0787938 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 9793872 positive integers (up to 20787938) that are relatively prime to 20787938.
20787938 has 16 divisors, whose sum is 33000000
The reverse of 20787938 is 83978702
Previous prime number is 199
Is Prime? no Number parity even Number length 8 Sum of Digits 44 Digital Root 8
Name
twenty million seven hundred eighty-seven thousand nine hundred thirty-eight
Scientific notation
2.0787938 × 10^7
Engineering notation
2.0787938 × 10^6
Prime Factorization
2 × 19 × 199 × 2749
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
20787938 Product of the distinct prime numbers
The prime factorization of 20787938 is 2 × 19 × 199 × 2749.
Since it has a total of 4 prime factors.
8 , 5 , 59 , 22 , 752 , 734 , 6812 , 1112 , 2608 , 21736 , 604105 , 457003 , 3014178 , 8430159 , 12266651 , 67133187 , 270452260 , 317420993 , 2636276032 , 4991902107
n×2
41575876
n×3
62363814
n×4
83151752
n×5
103939690
n÷2
10393969
n÷3
6929312.6666667
n÷3
5196984.5
n÷5
4157587.6
n2
432138366291844
n3
8.9832655658961E+21
n4
1.8674356762138E+29
n5
3.8820137056121E+36
2 √n4559.3791243984
3 √n274.96060262054
4 √n67.523174720968
5 √n29.077849376757
1 , 2 , 19 , 38 , 199 , 398 , 2749 , 3781 , 5498 , 7562 , 52231 , 104462 , 547051 , 1094102 , 10393969 , 20787938
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
-20787937 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 20787938 can be divided by 16 positive divisors.
The sum of these divisors (counting 20787938) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010011001011100010
3
Ternary
1110010010200122
4
Quaternary
1033103023202
5
Quinary
20310203223
6
Senary
2021320242
8
Octal
117231342
10
Decimal
20787938
12
Duodecimal
6b66082
16
Hexadecimal
13d32e2
20
Vigesimal
69i9gi
36
Base36
cdk2q
md5
7c5b1056422c8b969df7a4a49830acf9
sha1
56bbc877ff81568487b9720aad6c4f7d7d19bb64
sha256
c8e7c08afd33ebf20f3b84fa4e5cc1e10b6252404ad4199f47bee68fca7edd56
sha512
574bba773efdecad6af80afc179b6a50912190d55aae18e889211e92ae0c45ef9ab5db731a53b3534e63ad43fcd945da5cd52f529ddb11469ea9224217292983
ripemd-160
5d48198e6cccad6438e26362b12cc628f0200d25
Diameter
41575876
Circumference
130614466.60816
Area
1.3576027168768E+15
Volume
3.7629014809421E+22
Surface area
5.430410867507E+15
Circumference
130614466.60816
Perimeter
83151752
Area
432138366291844
Diagonal
29398583.853371
Surface area
2592830197751064
Volume
8.9832655658961E+21
Space diagonal
36005764.800592
Perimeter
62363814
Area
1.8712140157932E+14
Altitude
18002882.400296
Surface area
1.8712140157932E+14
Volume
1.0586879998075E+21
Height
9799527.9511237