19491389 is an odd 8-digits prime number following 19491388
and preceding 19491390 . In scientific notation, it is written as 1.9491389 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 19491388 positive integers (up to 19491389) that are relatively prime to 19491389.
19491389 has 2 divisors, whose sum is 19491390
The reverse of 19491389 is 98319491
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
nineteen million four hundred ninety-one thousand three hundred eighty-nine
Scientific notation
1.9491389 × 10^7
Engineering notation
1.9491389 × 10^6
Prime Factorization
19491389
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19491389
Product of the distinct prime numbers
The prime factorization of 19491389 is 19491389.
Since it has a total of 1 prime factors.
3 , 5 , 77 , 56 , 199 , 904 , 8776 , 2227 , 91207 , 55482 , 986986 , 524936 , 2030469 , 7684110 , 58550630 , 62809215 , 150245926 , 587819761 , 5880320977 , 6863188147
n×2
38982778
n×3
58474167
n×4
77965556
n×5
97456945
n÷2
9745694.5
n÷3
6497129.6666667
n÷3
4872847.25
n÷5
3898277.8
n2
379914245149321
n3
7.4050563388468E+21
n4
1.4433483366738E+29
n5
2.8132863892612E+36
2 √n
4414.9053217481
3 √n
269.12100524646
4 √n
66.444753906897
5 √n
28.705727498192
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19491390
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9745695
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4414.9054350008
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998973906
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19491389 can be divided by 2 positive divisors.
The sum of these divisors (counting 19491389) is 19491390, the average is 9745695.
Base
System
Value
2
Binary
1001010010110101000111101
3
Ternary
1100200021011022
4
Quaternary
1022112220331
5
Quinary
14442211024
6
Senary
1533433525
8
Octal
112265075
10
Decimal
19491389
12
Duodecimal
663b8a5
16
Hexadecimal
1296a3d
20
Vigesimal
61g899
36
Base36
blrnh
md5
989e585911c2fe3b7d6e41815f787687
sha1
a826d3cb249bf401da0abc760418cc0a4f467a66
sha256
98d5430594d067f25a87e1611f3eef4eb12260873f3a763af0c1f47fe9483cc2
sha512
9fdf8b7175dd763a67b2611bafe02e5b56acfe292b5781d40b4074b9fb18c52ecd8623d72e819de8d0a6d1d65749c0f5efc491fcb03ae535907dc9082040de94
ripemd-160
203dc3ec93b4c82c6cb27d0128aebfc68136a7cb
Diameter
38982778
Circumference
122468008.98132
Area
1.1935358015552E+15
Volume
3.1018227458053E+22
Surface area
4.7741432062209E+15
Circumference
122468008.98132
Perimeter
77965556
Area
379914245149321
Diagonal
27564986.67329
Surface area
2279485470895926
Volume
7.4050563388468E+21
Space diagonal
33760076.058089
Perimeter
58474167
Area
1.6450769377945E+14
Altitude
16880038.029045
Surface area
1.6450769377945E+14
Volume
8.7269425871116E+20
Height
9188328.8910966