19985405 is an odd 8-digits composite number following 19985404
and preceding 19985406 . In scientific notation, it is written as 1.9985405 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 14534800 positive integers (up to 19985405) that are relatively prime to 19985405.
19985405 has 4 divisors, whose sum is 20348832
The reverse of 19985405 is 50458991
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
nineteen million nine hundred eighty-five thousand four hundred five
Scientific notation
1.9985405 × 10^7
Engineering notation
1.9985405 × 10^6
Prime Factorization
55 × 363371
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19985405
Product of the distinct prime numbers
The prime factorization of 19985405 is 55 × 363371.
Since it has a total of 2 prime factors.
8 , 9 , 10 , 72 , 634 , 664 , 9100 , 8473 , 94916 , 786 , 313908 , 97300 , 3212694 , 5542565 , 21084701 , 74942066 , 849476075 , 89223948 , 3090729297 , 1773553670
n×2
39970810
n×3
59956215
n×4
79941620
n×5
99927025
n÷2
9992702.5
n÷3
6661801.6666667
n÷3
4996351.25
n÷5
3997081
n2
399416413014025
n3
7.9824987777326E+21
n4
1.5953347098499E+29
n5
3.1883410286908E+36
2 √n
4470.5038865882
3 √n
271.37571738309
4 √n
66.861826826585
5 √n
28.849785647319
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19985404
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19985405 can be divided by 4 positive divisors.
The sum of these divisors (counting 19985405) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001111001111111101
3
Ternary
1101121100211012
4
Quaternary
1030033033331
5
Quinary
20104013110
6
Senary
1552205005
8
Octal
114171775
10
Decimal
19985405
12
Duodecimal
6839765
16
Hexadecimal
130f3fd
20
Vigesimal
64i3a5
36
Base36
bwcu5
md5
1508a2c48c3a3e291f719a74ae764834
sha1
59b7fdc842b2a28ecf7a47ab291985ac1400941c
sha256
9cea0e30a2b5acf4a881967e74220ff0bd32de5d8c94af39c40c0c41c0f33b89
sha512
9b451505c1c4c267c5a8f4f3a0f7f760c2a547c7a7d92ee3677a5d148240ec2478343fe4882ce310467d9515cb62fdc3fc82e4630ebd8cccbf097a1fc0ce7216
ripemd-160
cff8831300794fc018ee0afc78bb283376e5bbad
Diameter
39970810
Circumference
125572003.05403
Area
1.254803668848E+15
Volume
3.3437012689885E+22
Surface area
5.0192146753922E+15
Circumference
125572003.05403
Perimeter
79941620
Area
399416413014025
Diagonal
28263630.800519
Surface area
2396498478084150
Volume
7.9824987777326E+21
Space diagonal
34615736.869841
Perimeter
59956215
Area
1.729523801793E+14
Altitude
17307868.434921
Surface area
1.729523801793E+14
Volume
9.40746502758E+20
Height
9421210.2668397