19981271 is an odd 8-digits composite number following 19981270
and preceding 19981272 . In scientific notation, it is written as 1.9981271 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 19970544 positive integers (up to 19981271) that are relatively prime to 19981271.
19981271 has 4 divisors, whose sum is 19992000
The reverse of 19981271 is 17218991
Previous prime number is 2399
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
nineteen million nine hundred eighty-one thousand two hundred seventy-one
Scientific notation
1.9981271 × 10^7
Engineering notation
1.9981271 × 10^6
Prime Factorization
2399 × 8329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19981271
Product of the distinct prime numbers
The prime factorization of 19981271 is 2399 × 8329.
Since it has a total of 2 prime factors.
6 , 9 , 94 , 36 , 630 , 307 , 4923 , 264 , 11488 , 18237 , 978177 , 882613 , 3450144 , 6695307 , 21821215 , 66665085 , 607424744 , 768082629 , 7970037089 , 7920680978
n×2
39962542
n×3
59943813
n×4
79925084
n×5
99906355
n÷2
9990635.5
n÷3
6660423.6666667
n÷3
4995317.75
n÷5
3996254.2
n2
399251190775441
n3
7.9775462399568E+21
n4
1.5940151333561E+29
n5
3.1850448357689E+36
2 √n
4470.0414986888
3 √n
271.35700465118
4 √n
66.858368950258
5 √n
28.848592027444
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
-19981270
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 19981271 can be divided by 4 positive divisors.
The sum of these divisors (counting 19981271) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001110001111010111
3
Ternary
1101121011011002
4
Quaternary
1030032033113
5
Quinary
20103400041
6
Senary
1552133515
8
Octal
114161727
10
Decimal
19981271
12
Duodecimal
683729b
16
Hexadecimal
130e3d7
20
Vigesimal
64hd3b
36
Base36
bw9nb
md5
16628defc21fa2170a33225df81b26b4
sha1
996af3565803f55c7fcead0493e1267bd1a57929
sha256
77ef752bd21af56e08eab298fbe4ad9c47b887df3e22454b6828053d76cf896a
sha512
f6cfbad3c72f4f74e6b403453e1f8c29a339bfb9bdee4eac186e3cfa834d09659f6b716aa3d794b8cc36b40d7a16f2820e047d5632fadceff9460c6e692b78b2
ripemd-160
edd8412a94b766cb7d373eea3d4ceead616340c4
Diameter
39962542
Circumference
125546028.36597
Area
1.2542846078771E+15
Volume
3.3416267548161E+22
Surface area
5.0171384315084E+15
Circumference
125546028.36597
Perimeter
79925084
Area
399251190775441
Diagonal
28257784.441652
Surface area
2395507144652646
Volume
7.9775462399568E+21
Space diagonal
34608576.571803
Perimeter
59943813
Area
1.7288083685136E+14
Altitude
17304288.285901
Surface area
1.7288083685136E+14
Volume
9.4016284058378E+20
Height
9419261.4805507