19902390 is an even 8-digits composite number following 19902389
and preceding 19902391 . In scientific notation, it is written as 1.9902390 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 5282304 positive integers (up to 19902390) that are relatively prime to 19902390.
19902390 has 16 divisors, whose sum is 31993920
The reverse of 19902390 is 09320991
Previous prime number is 229
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
nineteen million nine hundred two thousand three hundred ninety
Scientific notation
1.9902390 × 10^7
Engineering notation
1.9902390 × 10^6
Prime Factorization
2 × 15 × 229 × 2897
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19902390
Product of the distinct prime numbers
The prime factorization of 19902390 is 2 × 15 × 229 × 2897.
Since it has a total of 4 prime factors.
7 , 10 , 76 , 74 , 644 , 794 , 5672 , 2697 , 70995 , 99374 , 710011 , 269886 , 5057499 , 4479147 , 60587987 , 62281068 , 654894637 , 886564741 , 8259219653 , 3627740140
n×2
39804780
n×3
59707170
n×4
79609560
n×5
99511950
n÷2
9951195
n÷3
6634130
n÷3
4975597.5
n÷5
3980478
n2
396105127712100
n3
7.883438732726E+21
n4
1.5689927219982E+29
n5
3.122670506037E+36
2 √n
4461.2094772606
3 √n
270.9994508052
4 √n
66.792286061046
5 √n
28.825778586506
1 , 2 , 15 , 30 , 229 , 458 , 2897 , 3435 , 5794 , 6870 , 43455 , 86910 , 663413 , 1326826 , 9951195 , 19902390
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19902389
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19902390 can be divided by 16 positive divisors.
The sum of these divisors (counting 19902390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001011111010111110110110
3
Ternary
1101110010221120
4
Quaternary
1023322332312
5
Quinary
20043334030
6
Senary
1550324410
8
Octal
113727666
10
Decimal
19902390
12
Duodecimal
67b9706
16
Hexadecimal
12fafb6
20
Vigesimal
647fja
36
Base36
buks6
md5
79fac4bc47ac03c1a026bc3012ea5220
sha1
9b9fea65a2681b1de76d2917456a4db3ffd95e0e
sha256
907a1fc5e453391f1c23ed107b20e8fbc15741765673f79bacc4878792be452e
sha512
f6bc43a2956cafa312f2c990b9f76599986a384827ed9e8f11487a96552bf2133931af0bb84c762d4e47fb283d82759a3bb3d037159e1ddde671050afe9e2c05
ripemd-160
5ff09ae16a6606c5951010562bf0b4354e810d3e
Diameter
39804780
Circumference
125050404.42576
Area
1.2444009592696E+15
Volume
3.3022070943676E+22
Surface area
4.9776038370783E+15
Circumference
125050404.42576
Perimeter
79609560
Area
396105127712100
Diagonal
28146229.861639
Surface area
2376630766272600
Volume
7.883438732726E+21
Space diagonal
34471950.672051
Perimeter
59707170
Area
1.7151855158398E+14
Altitude
17235975.336025
Surface area
1.7151855158398E+14
Volume
9.2907216449654E+20
Height
9382076.6205462