19981279 is an odd 8-digits composite number following 19981278
and preceding 19981280 . In scientific notation, it is written as 1.9981279 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 19787184 positive integers (up to 19981279) that are relatively prime to 19981279.
19981279 has 4 divisors, whose sum is 20175376
The reverse of 19981279 is 97218991
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
nineteen million nine hundred eighty-one thousand two hundred seventy-nine
Scientific notation
1.9981279 × 10^7
Engineering notation
1.9981279 × 10^6
Prime Factorization
103 × 193993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19981279
Product of the distinct prime numbers
The prime factorization of 19981279 is 103 × 193993.
Since it has a total of 2 prime factors.
1 , 5 , 25 , 85 , 625 , 134 , 5369 , 5743 , 83963 , 19845 , 708231 , 697474 , 4588393 , 6075531 , 65530457 , 42262170 , 316605236 , 113032266 , 1647350756 , 8232971499
n×2
39962558
n×3
59943837
n×4
79925116
n×5
99906395
n÷2
9990639.5
n÷3
6660426.3333333
n÷3
4995319.75
n÷5
3996255.8
n2
399251510475841
n3
7.9775558219892E+21
n4
1.5940176861724E+29
n5
3.1850512118345E+36
2 √n
4470.042393535
3 √n
271.35704086602
4 √n
66.858375642361
5 √n
28.848594337494
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
-19981278
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 19981279 can be divided by 4 positive divisors.
The sum of these divisors (counting 19981279) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001110001111011111
3
Ternary
1101121011011101
4
Quaternary
1030032033133
5
Quinary
20103400104
6
Senary
1552133531
8
Octal
114161737
10
Decimal
19981279
12
Duodecimal
68372a7
16
Hexadecimal
130e3df
20
Vigesimal
64hd3j
36
Base36
bw9nj
md5
eedacaee5ac757351007c69699f4fb79
sha1
10bea00e1e46cb521764e08ae08a20cfe40c337e
sha256
5d2534339b8700ea6a095e858ec33254d9166667640149ef9d5db08676ea2646
sha512
cf9150934f565dfc10e11fed3504904f8b93885c1edd905d5424107cc6424141e2abb692e5845bb6358229386b9582a50dd3a9bf2c2f158a6edfbb5cb9e5e9f7
ripemd-160
1d9de965396adaf9995e671110911c7320f817c3
Diameter
39962558
Circumference
125546078.63146
Area
1.2542856122455E+15
Volume
3.3416307685285E+22
Surface area
5.0171424489821E+15
Circumference
125546078.63146
Perimeter
79925116
Area
399251510475841
Diagonal
28257795.755361
Surface area
2395509062855046
Volume
7.9775558219892E+21
Space diagonal
34608590.428209
Perimeter
59943837
Area
1.7288097528569E+14
Altitude
17304295.214105
Surface area
1.7288097528569E+14
Volume
9.4016396983713E+20
Height
9419265.2517869