19388891 is an odd 8-digits composite number following 19388890
and preceding 19388892 . In scientific notation, it is written as 1.9388891 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 18016128 positive integers (up to 19388891) that are relatively prime to 19388891.
19388891 has 8 divisors, whose sum is 20790720
The reverse of 19388891 is 19888391
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
nineteen million three hundred eighty-eight thousand eight hundred ninety-one
Scientific notation
1.9388891 × 10^7
Engineering notation
1.9388891 × 10^6
Prime Factorization
17 × 79 × 14437
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19388891
Product of the distinct prime numbers
The prime factorization of 19388891 is 17 × 79 × 14437.
Since it has a total of 3 prime factors.
2 , 8 , 80 , 63 , 2 , 32 , 7683 , 8182 , 97703 , 23925 , 203926 , 731940 , 8642707 , 4526281 , 99999978 , 33527041 , 250710921 , 873224661 , 7379648922 , 7036539157
n×2
38777782
n×3
58166673
n×4
77555564
n×5
96944455
n÷2
9694445.5
n÷3
6462963.6666667
n÷3
4847222.75
n÷5
3877778.2
n2
375929094209881
n3
7.2888482313641E+21
n4
1.4132268387346E+29
n5
2.74009011345E+36
2 √n
4403.2818442612
3 √n
268.64844001027
4 √n
66.3572290279
5 √n
28.6754732336
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
-19388890
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 19388891 can be divided by 8 positive divisors.
The sum of these divisors (counting 19388891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001001111101100111011011
3
Ternary
1100111001120002
4
Quaternary
1021331213123
5
Quinary
14430421031
6
Senary
1531323215
8
Octal
111754733
10
Decimal
19388891
12
Duodecimal
65b050b
16
Hexadecimal
127d9db
20
Vigesimal
613c4b
36
Base36
bjkkb
md5
a0818119af8b6c273c6b36ea8366457e
sha1
c709cc61386f1754e9f1bf0c57d61e8007825242
sha256
17a97ffa9341e031a35898cd3db5dd466ec7330fda4f0e17cd3a5417d0b3ba29
sha512
f0856f5c4a8d3df360fc2e690baf3e899a2a2a8affbf5f0e2436b9bf8aa8157964baf2845b432898a3d010f09c3fdbfb09ed309a83a9416dd1613d02d50d46da
ripemd-160
073c629438616a320455932a67f946a79d6aacc1
Diameter
38777782
Circumference
121823995.05371
Area
1.1810160806404E+15
Volume
3.0531456075713E+22
Surface area
4.7240643225617E+15
Circumference
121823995.05371
Perimeter
77555564
Area
375929094209881
Diagonal
27420032.611574
Surface area
2255574565259286
Volume
7.2888482313641E+21
Space diagonal
33582544.314415
Perimeter
58166673
Area
1.6278207280372E+14
Altitude
16791272.157207
Surface area
1.6278207280372E+14
Volume
8.5899900190619E+20
Height
9140010.8705245