19987766 is an even 8-digits composite number following 19987765
and preceding 19987767 . In scientific notation, it is written as 1.9987766 × 10^7.
The sum of its digits is 53. It has a total of 4 prime factors and 16 positive divisors.
There are 9836640 positive integers (up to 19987766) that are relatively prime to 19987766.
19987766 has 16 divisors, whose sum is 30457680
The reverse of 19987766 is 66778991
Previous prime number is 277
Is Prime? no
Number parity even
Number length 8
Sum of Digits 53
Digital Root 8
Name
nineteen million nine hundred eighty-seven thousand seven hundred sixty-six
Scientific notation
1.9987766 × 10^7
Engineering notation
1.9987766 × 10^6
Prime Factorization
2 × 331 × 277 × 109
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19987766
Product of the distinct prime numbers
The prime factorization of 19987766 is 2 × 331 × 277 × 109.
Since it has a total of 4 prime factors.
6 , 5 , 65 , 36 , 886 , 743 , 7216 , 5445 , 2863 , 43580 , 772950 , 214725 , 7805012 , 3462618 , 32062703 , 70895879 , 800176621 , 607054243 , 645981147 , 5479444284
n×2
39975532
n×3
59963298
n×4
79951064
n×5
99938830
n÷2
9993883
n÷3
6662588.6666667
n÷3
4996941.5
n÷5
3997553.2
n2
399510789670756
n3
7.9853281784143E+21
n4
1.5960887106335E+29
n5
3.1902247663384E+36
2 √n
4470.7679429825
3 √n
271.3864033952
4 √n
66.863801439811
5 √n
28.850467255977
1 , 2 , 109 , 218 , 277 , 331 , 554 , 662 , 30193 , 36079 , 60386 , 72158 , 91687 , 183374 , 9993883 , 19987766
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
-19987765
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 19987766 can be divided by 16 positive divisors.
The sum of these divisors (counting 19987766) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100001111110100110110
3
Ternary
1101121111001122
4
Quaternary
1030033310312
5
Quinary
20104102031
6
Senary
1552223542
8
Octal
114176466
10
Decimal
19987766
12
Duodecimal
683abb2
16
Hexadecimal
130fd36
20
Vigesimal
64i986
36
Base36
bwenq
md5
01ea3bf732570c317b586c58df9eb9d4
sha1
5e52654e0e04ff6030b63d54551bed444922989b
sha256
f61bf448f0a713f5297131ac2039f1ddff464d60ccf8979bb4cceaa0736e9f00
sha512
6178b6039860ae81e949f70640932fbf41e127dd816c2a60a4ba66ba271acc2a0e42bff32843b4b0763a464f4700c1e24d32fc144416eb459ff2a7ba53aab5f0
ripemd-160
6b736d30946993b4dbcf5e0d626b60eba6900b5a
Diameter
39975532
Circumference
125586837.65454
Area
1.2551001618595E+15
Volume
3.3448864455747E+22
Surface area
5.020400647438E+15
Circumference
125586837.65454
Perimeter
79951064
Area
399510789670756
Diagonal
28266969.75874
Surface area
2397064738024536
Volume
7.9853281784143E+21
Space diagonal
34619826.241798
Perimeter
59963298
Area
1.7299324647043E+14
Altitude
17309913.120899
Surface area
1.7299324647043E+14
Volume
9.4107995082613E+20
Height
9422323.2529133