19985965 is an odd 8-digits composite number following 19985964
and preceding 19985966 . In scientific notation, it is written as 1.9985965 × 10^7.
The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors.
There are 14392576 positive integers (up to 19985965) that are relatively prime to 19985965.
19985965 has 16 divisors, whose sum is 26500608
The reverse of 19985965 is 56958991
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
nineteen million nine hundred eighty-five thousand nine hundred sixty-five
Scientific notation
1.9985965 × 10^7
Engineering notation
1.9985965 × 10^6
Prime Factorization
5 × 17 × 23 × 10223
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19985965
Product of the distinct prime numbers
The prime factorization of 19985965 is 5 × 17 × 23 × 10223.
Since it has a total of 4 prime factors.
3 , 6 , 53 , 49 , 334 , 547 , 2985 , 7618 , 10447 , 40611 , 384483 , 129920 , 5831043 , 5820475 , 1542202 , 69909093 , 554805113 , 137362870 , 1477636657 , 4409418020
n×2
39971930
n×3
59957895
n×4
79943860
n×5
99929825
n÷2
9992982.5
n÷3
6661988.3333333
n÷3
4996491.25
n÷5
3997193
n2
399438796981225
n3
7.9831698161089E+21
n4
1.5955135253381E+29
n5
3.1887877474434E+36
2 √n
4470.5665189101
3 √n
271.37825204914
4 √n
66.862295196247
5 √n
28.84994732229
1 , 5 , 17 , 23 , 85 , 115 , 391 , 1955 , 10223 , 51115 , 173791 , 235129 , 868955 , 1175645 , 3997193 , 19985965
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
-19985964
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 19985965 can be divided by 16 positive divisors.
The sum of these divisors (counting 19985965) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100001111011000101101
3
Ternary
1101121101120221
4
Quaternary
1030033120231
5
Quinary
20104022330
6
Senary
1552211341
8
Octal
114173055
10
Decimal
19985965
12
Duodecimal
6839b51
16
Hexadecimal
130f62d
20
Vigesimal
64i4i5
36
Base36
bwd9p
md5
cf0d0f8489322c4ddaacc26a3580d0bc
sha1
6a612f32231fbd2b449bb877fe6d76b7e551d1fd
sha256
4980382ab98ccef95fbe9cd58c62a7e9b180ad8e88666e062574877f506af5cd
sha512
72c5dc63c1d93903c3a448690a27b9c14846bef123341e8591ae1e911c10bdca7cdda3782dd77c02c0a62d986c52d9911675d75d90abe4c27315b62b14e28320
ripemd-160
40532d659370b09b827b392023a7e6ca1e90ad7a
Diameter
39971930
Circumference
125575521.63781
Area
1.254873990155E+15
Volume
3.3439823528863E+22
Surface area
5.0194959606198E+15
Circumference
125575521.63781
Perimeter
79943860
Area
399438796981225
Diagonal
28264422.760114
Surface area
2396632781887350
Volume
7.9831698161089E+21
Space diagonal
34616706.818293
Perimeter
59957895
Area
1.7296207272142E+14
Altitude
17308353.409147
Surface area
1.7296207272142E+14
Volume
9.4082558538906E+20
Height
9421474.2533713