19431387 is an odd 8-digits composite number following 19431386
and preceding 19431388 . In scientific notation, it is written as 1.9431387 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 12954240 positive integers (up to 19431387) that are relatively prime to 19431387.
19431387 has 4 divisors, whose sum is 20151096
The reverse of 19431387 is 78313491
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
nineteen million four hundred thirty-one thousand three hundred eighty-seven
Scientific notation
1.9431387 × 10^7
Engineering notation
1.9431387 × 10^6
Prime Factorization
27 × 719681
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19431387
Product of the distinct prime numbers
The prime factorization of 19431387 is 27 × 719681.
Since it has a total of 2 prime factors.
8 , 4 , 44 , 22 , 926 , 628 , 4457 , 2174 , 37247 , 85454 , 709083 , 462960 , 4259803 , 9119232 , 37763315 , 67842826 , 837967246 , 172204276 , 4243349968 , 6717186921
n×2
38862774
n×3
58294161
n×4
77725548
n×5
97156935
n÷2
9715693.5
n÷3
6477129
n÷3
4857846.75
n÷5
3886277.4
n2
377578800743769
n3
7.3368798002481E+21
n4
1.425657507711E+29
n5
2.7702502761788E+36
2 √n
4408.104694764
3 √n
268.84456870198
4 √n
66.393559136139
5 √n
28.6880322393
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
-19431386
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 19431387 can be divided by 4 positive divisors.
The sum of these divisors (counting 19431387) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010000111111111011011
3
Ternary
1100120012212000
4
Quaternary
1022013333123
5
Quinary
14433301022
6
Senary
1532252043
8
Octal
112077733
10
Decimal
19431387
12
Duodecimal
6611023
16
Hexadecimal
1287fdb
20
Vigesimal
618i97
36
Base36
bkhcr
md5
df4731d6b66cef9a8db5b888d3ddbccd
sha1
9659842f79bc415a6fd71b3dcee062210db2c97d
sha256
d656e68cee95c5677618819aa18a029f4f328dc50ab3076377908b87ac2d2a2b
sha512
2ac4a0a9873a279e58e9bb0eca7f1dd00a3b27749e049b45fc4a999dd3a4768cc3e399bcb6de28298aedfdba8805622f0a61b7e9e29515ed257477f1020c4ea3
ripemd-160
aebf9a813da061fd016ce0287f29065a54f7f995
Diameter
38862774
Circumference
122091005.29652
Area
1.1861987865679E+15
Volume
3.0732650240974E+22
Surface area
4.7447951462715E+15
Circumference
122091005.29652
Perimeter
77725548
Area
377578800743769
Diagonal
27480131.03112
Surface area
2265472804462614
Volume
7.3368798002481E+21
Space diagonal
33656149.545533
Perimeter
58294161
Area
1.6349641668728E+14
Altitude
16828074.772767
Surface area
1.6349641668728E+14
Volume
8.6465957658433E+20
Height
9160043.6770401