19491491 is an odd 8-digits prime number following 19491490
and preceding 19491492 . In scientific notation, it is written as 1.9491491 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 19491490 positive integers (up to 19491491) that are relatively prime to 19491491.
19491491 has 2 divisors, whose sum is 19491492
The reverse of 19491491 is 19419491
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
nineteen million four hundred ninety-one thousand four hundred ninety-one
Scientific notation
1.9491491 × 10^7
Engineering notation
1.9491491 × 10^6
Prime Factorization
19491491
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19491491
Product of the distinct prime numbers
The prime factorization of 19491491 is 19491491.
Since it has a total of 1 prime factors.
5 , 3 , 44 , 49 , 401 , 707 , 5272 , 7809 , 80195 , 63158 , 813223 , 953285 , 6701470 , 7781416 , 67647752 , 48188491 , 94524792 , 809970911 , 3737997152 , 5382933854
n×2
38982982
n×3
58474473
n×4
77965964
n×5
97457455
n÷2
9745745.5
n÷3
6497163.6666667
n÷3
4872872.75
n÷5
3898298.2
n2
379918221403081
n3
7.4051725932142E+21
n4
1.4433785495408E+29
n5
2.8133600007968E+36
2 √n
4414.9168735096
3 √n
269.12147468956
4 √n
66.444840834407
5 √n
28.705757542003
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19491492
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9745746
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4414.916986762
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998973911
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19491491 can be divided by 2 positive divisors.
The sum of these divisors (counting 19491491) is 19491492, the average is 9745746.
Base
System
Value
2
Binary
1001010010110101010100011
3
Ternary
1100200021022002
4
Quaternary
1022112222203
5
Quinary
14442211431
6
Senary
1533434215
8
Octal
112265243
10
Decimal
19491491
12
Duodecimal
663b96b
16
Hexadecimal
1296aa3
20
Vigesimal
61g8eb
36
Base36
blrqb
md5
7cfd2be2c157db3a7fcef1f360acd8b3
sha1
575f322a607f9bf5183e6b265548486b05058659
sha256
76d7cd4ec6a8ac3075d0a8f8fb76d306c879ab7fab903565b63569090d3f79d2
sha512
0b5df506a3bfa48415712f57e1a2ccb3c50652f1918d071de11c2cc696dd9a5ece2fc63030b3b3be909786fe28987fd3810bc48999fdf11b942c26080ba3299a
ripemd-160
5d644ac38042401b5167251afd7e961c019bb1b0
Diameter
38982982
Circumference
122468649.86622
Area
1.1935482933248E+15
Volume
3.1018714423208E+22
Surface area
4.7741931732993E+15
Circumference
122468649.86622
Perimeter
77965964
Area
379918221403081
Diagonal
27565130.923073
Surface area
2279509328418486
Volume
7.4051725932142E+21
Space diagonal
33760252.727272
Perimeter
58474473
Area
1.6450941554783E+14
Altitude
16880126.363636
Surface area
1.6450941554783E+14
Volume
8.7270795941975E+20
Height
9188376.9743577