19997965 is an odd 8-digits composite number following 19997964
and preceding 19997966 . In scientific notation, it is written as 1.9997965 × 10^7.
The sum of its digits is 55. It has a total of 4 prime factors and 12 positive divisors.
There are 14120064 positive integers (up to 19997965) that are relatively prime to 19997965.
19997965 has 12 divisors, whose sum is 21211740
The reverse of 19997965 is 56979991
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
nineteen million nine hundred ninety-seven thousand nine hundred sixty-five
Scientific notation
1.9997965 × 10^7
Engineering notation
1.9997965 × 10^6
Prime Factorization
65 × 29 × 103 × 103
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
194155
Product of the distinct prime numbers
The prime factorization of 19997965 is 65 × 29 × 103 × 103.
Since it has a total of 4 prime factors.
6 , 7 , 94 , 94 , 430 , 552 , 4375 , 4029 , 54674 , 46447 , 904752 , 752550 , 9823505 , 8293481 , 33264282 , 64853836 , 691118704 , 398208665 , 5608519573 , 582337076
n×2
39995930
n×3
59993895
n×4
79991860
n×5
99989825
n÷2
9998982.5
n÷3
6665988.3333333
n÷3
4999491.25
n÷5
3999593
n2
399918604141225
n3
7.9975582484651E+21
n4
1.5993488993827E+29
n5
3.1983723312643E+36
2 √n
4471.908429295
3 √n
271.43255494747
4 √n
66.87232932458
5 √n
28.853410915383
1 , 29 , 65 , 103 , 1885 , 2987 , 6695 , 10609 , 194155 , 307661 , 689585 , 19997965
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19997964
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19997965 can be divided by 12 positive divisors.
The sum of these divisors (counting 19997965) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100010010010100001101
3
Ternary
1101122000001101
4
Quaternary
1030102110031
5
Quinary
20104413330
6
Senary
1552343101
8
Octal
114222415
10
Decimal
19997965
12
Duodecimal
6844a91
16
Hexadecimal
131250d
20
Vigesimal
64jei5
36
Base36
bwmj1
md5
3b1255f24b2b77f627305af9f79a4617
sha1
74ed16bc281cc54e7aa647f29761828af185d074
sha256
b5bdec50651b07cb78c258cc9ad722dd5a281110e486c50986c006dde696ed41
sha512
0420a968d2e0340c42488df9fd3b11cc8a2c6a95b98c8cf6923cbad7fe5387d9b0469f3026425e0166f435167acafbf0e98a6f47f9a569c92dc0bb3c39c609c6
ripemd-160
177976f18542d2b720247570f5029764f7fa32b5
Diameter
39995930
Circumference
125650919.86149
Area
1.256381348804E+15
Volume
3.3500093653379E+22
Surface area
5.0255253952158E+15
Circumference
125650919.86149
Perimeter
79991860
Area
399918604141225
Diagonal
28281393.322862
Surface area
2399511624847350
Volume
7.9975582484651E+21
Space diagonal
34637491.427984
Perimeter
59993895
Area
1.7316983531616E+14
Altitude
17318745.713992
Surface area
1.7316983531616E+14
Volume
9.4252127840401E+20
Height
9427131.1076208