19493721 is an odd 8-digits composite number following 19493720
and preceding 19493722 . In scientific notation, it is written as 1.9493721 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 11996064 positive integers (up to 19493721) that are relatively prime to 19493721.
19493721 has 8 divisors, whose sum is 23325960
The reverse of 19493721 is 12739491
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
nineteen million four hundred ninety-three thousand seven hundred twenty-one
Scientific notation
1.9493721 × 10^7
Engineering notation
1.9493721 × 10^6
Prime Factorization
9 × 13 × 166613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19493721
Product of the distinct prime numbers
The prime factorization of 19493721 is 9 × 13 × 166613.
Since it has a total of 3 prime factors.
8 , 5 , 21 , 100 , 748 , 642 , 4049 , 9487 , 77791 , 16437 , 766053 , 850024 , 4864017 , 2239818 , 42357515 , 25959806 , 91616832 , 468567663 , 3203358084 , 6949413300
n×2
38987442
n×3
58481163
n×4
77974884
n×5
97468605
n÷2
9746860.5
n÷3
6497907
n÷3
4873430.25
n÷5
3898744.2
n2
380005158425841
n3
7.4077145369141E+21
n4
1.4440392043025E+29
n5
2.8149697361735E+36
2 √n
4415.1694191729
3 √n
269.13173759527
4 √n
66.446741223125
5 √n
28.706414350762
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19493720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19493721 can be divided by 8 positive divisors.
The sum of these divisors (counting 19493721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001010010111001101011001
3
Ternary
1100200101100200
4
Quaternary
1022113031121
5
Quinary
14442244341
6
Senary
1533452413
8
Octal
112271531
10
Decimal
19493721
12
Duodecimal
6641109
16
Hexadecimal
1297359
20
Vigesimal
61ge61
36
Base36
bltg9
md5
9a254399ece26e4783d92a1dfc5c429b
sha1
4766087af888f2e10f1d9898ee26c87661e3c4ad
sha256
f1fc3f1210dbe93b8b9509eb6bf1038144985e82fb7cb34ba7b5ce0f42c72833
sha512
0831340c38452f5e364444c967543fc0d0711c5fa9d6b67ae0ac7be48691907ffe74199fc79dda32696eb49d288324c234431edf7c8d5e720212c61a67bfe7b3
ripemd-160
a8a5c61a0b74870ef020c867c60bd97305a281bd
Diameter
38987442
Circumference
122482661.36946
Area
1.1938214140368E+15
Volume
3.102936209208E+22
Surface area
4.7752856561474E+15
Circumference
122482661.36946
Perimeter
77974884
Area
380005158425841
Diagonal
27568284.619317
Surface area
2280030950555046
Volume
7.4077145369141E+21
Space diagonal
33764115.200572
Perimeter
58481163
Area
1.6454706038295E+14
Altitude
16882057.600286
Surface area
1.6454706038295E+14
Volume
8.7300753035769E+20
Height
9189428.2064391