20787770 is an even 8-digits composite number following 20787769
and preceding 20787771 . In scientific notation, it is written as 2.0787770 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 7824896 positive integers (up to 20787770) that are relatively prime to 20787770.
20787770 has 16 divisors, whose sum is 33408936
The reverse of 20787770 is 07778702
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million seven hundred eighty-seven thousand seven hundred seventy
Scientific notation
2.0787770 × 10^7
Engineering notation
2.0787770 × 10^6
Prime Factorization
2 × 85 × 17 × 7193
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20787770
Product of the distinct prime numbers
The prime factorization of 20787770 is 2 × 85 × 17 × 7193.
Since it has a total of 4 prime factors.
8 , 7 , 83 , 85 , 792 , 77 , 9088 , 1807 , 94361 , 81496 , 168179 , 250904 , 4920852 , 2817457 , 38955599 , 16897658 , 268727084 , 445552370 , 2642774371 , 8940924692
n×2
41575540
n×3
62363310
n×4
83151080
n×5
103938850
n÷2
10393885
n÷3
6929256.6666667
n÷3
5196942.5
n÷5
4157554
n2
432131381572900
n3
8.9830477699197E+21
n4
1.867375309401E+29
n5
3.8818568435508E+36
2 √n
4559.3607008001
3 √n
274.95986191046
4 √n
67.52303829657
5 √n
29.077802377439
1 , 2 , 17 , 34 , 85 , 170 , 1445 , 2890 , 7193 , 14386 , 122281 , 244562 , 611405 , 1222810 , 10393885 , 20787770
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
-20787769
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 20787770 can be divided by 16 positive divisors.
The sum of these divisors (counting 20787770) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010011001000111010
3
Ternary
1110010010110102
4
Quaternary
1033103020322
5
Quinary
20310202040
6
Senary
2021315402
8
Octal
117231072
10
Decimal
20787770
12
Duodecimal
6b65b62
16
Hexadecimal
13d323a
20
Vigesimal
69i98a
36
Base36
cdjy2
md5
e4642ef13003f6dcffc0d653bcbb590c
sha1
62a7cd53af7e73c0a36cf8aafffa81f3d5036fd4
sha256
7622278be4728eadd2bf626dccd0ae98e7f8689dc2175c50e5d33260c0677e43
sha512
c4742b44549168056ed46b8b8dc95d1eae1120bb194b34fa3944d9252c7071e32b149f7eb0564ab02f99bdaee0e4b61600761d1c4d46d4cd43f2b7674dd7e159
ripemd-160
8627185442d532b6a56a78fb563503a0648eab60
Diameter
41575540
Circumference
130613411.03303
Area
1.357580773735E+15
Volume
3.7628102507768E+22
Surface area
5.4303230949401E+15
Circumference
130613411.03303
Perimeter
83151080
Area
432131381572900
Diagonal
29398346.265493
Surface area
2592788289437400
Volume
8.9830477699197E+21
Space diagonal
36005473.816056
Perimeter
62363310
Area
1.871183771073E+14
Altitude
18002736.908028
Surface area
1.871183771073E+14
Volume
1.0586623323055E+21
Height
9799448.7551642