19989815 is an odd 8-digits composite number following 19989814
and preceding 19989816 . In scientific notation, it is written as 1.9989815 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 15991848 positive integers (up to 19989815) that are relatively prime to 19989815.
19989815 has 4 divisors, whose sum is 23987784
The reverse of 19989815 is 51898991
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
nineteen million nine hundred eighty-nine thousand eight hundred fifteen
Scientific notation
1.9989815 × 10^7
Engineering notation
1.9989815 × 10^6
Prime Factorization
5 × 3997963
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19989815
Product of the distinct prime numbers
The prime factorization of 19989815 is 5 × 3997963.
Since it has a total of 2 prime factors.
4 , 7 , 13 , 43 , 962 , 971 , 844 , 2453 , 7361 , 58520 , 430888 , 178473 , 1302616 , 8289936 , 82203530 , 62386822 , 990005130 , 569573816 , 9197784501 , 6949860684
n×2
39979630
n×3
59969445
n×4
79959260
n×5
99949075
n÷2
9994907.5
n÷3
6663271.6666667
n÷3
4997453.75
n÷5
3997963
n2
399592703734225
n3
7.987784222997E+21
n4
1.5967432887763E+29
n5
3.1918602945129E+36
2 √n
4470.9970923721
3 √n
271.39567659662
4 √n
66.865514971262
5 √n
28.851058739624
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
-19989814
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 19989815 can be divided by 4 positive divisors.
The sum of these divisors (counting 19989815) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010000010100110111
3
Ternary
1101121120212112
4
Quaternary
1030100110313
5
Quinary
20104133230
6
Senary
1552241235
8
Octal
114202467
10
Decimal
19989815
12
Duodecimal
684021b
16
Hexadecimal
1310537
20
Vigesimal
64ieaf
36
Base36
bwg8n
md5
7e7b93a6311180273859b259f30ec610
sha1
113572498a17e3334260869901673306edb3ce41
sha256
d2493e9071e1756bdd6f9f849221a9aa8630361f5c9478719ceb275194a822d9
sha512
f2d15910518b01bcc99feb0f431dbc3fd107e2096c25e63130a6cd874d482d6b1baa3c7ec48fcd7864595502852d4b999b7ba620aa1f88793b7851114807a78f
ripemd-160
a2968a2b5d33b2f2d4f5e7afa542d3e3f7e72758
Diameter
39979630
Circumference
125599711.90124
Area
1.2553575024795E+15
Volume
3.3459152311237E+22
Surface area
5.0214300099181E+15
Circumference
125599711.90124
Perimeter
79959260
Area
399592703734225
Diagonal
28269867.482329
Surface area
2397556222405350
Volume
7.987784222997E+21
Space diagonal
34623375.213902
Perimeter
59969445
Area
1.7302871630037E+14
Altitude
17311687.606951
Surface area
1.7302871630037E+14
Volume
9.4136939845601E+20
Height
9423289.1607764