19902690 is an even 8-digits composite number following 19902689
and preceding 19902691 . In scientific notation, it is written as 1.9902690 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 4935168 positive integers (up to 19902690) that are relatively prime to 19902690.
19902690 has 32 divisors, whose sum is 33007104
The reverse of 19902690 is 09620991
Previous prime number is 113
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
nineteen million nine hundred two thousand six hundred ninety
Scientific notation
1.9902690 × 10^7
Engineering notation
1.9902690 × 10^6
Prime Factorization
2 × 15 × 57 × 113 × 103
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
19902690
Product of the distinct prime numbers
The prime factorization of 19902690 is 2 × 15 × 57 × 113 × 103.
Since it has a total of 5 prime factors.
5 , 4 , 55 , 2 , 557 , 638 , 5376 , 4625 , 82718 , 67651 , 69354 , 712558 , 7150781 , 2156834 , 25030446 , 84433152 , 688043258 , 420358847 , 9242116626 , 2685430850
n×2
39805380
n×3
59708070
n×4
79610760
n×5
99513450
n÷2
9951345
n÷3
6634230
n÷3
4975672.5
n÷5
3980538
n2
396117069236100
n3
7.8837952327146E+21
n4
1.569087325402E+29
n5
3.1229058620405E+36
2 √n
4461.2431003029
3 √n
271.00081244111
4 √n
66.792537759116
5 √n
28.825865487441
1 , 2 , 15 , 30 , 57 , 103 , 113 , 114 , 206 , 226 , 855 , 1545 , 1695 , 1710 , 3090 , 3390 , 5871 , 6441 , 11639 , 11742 , 12882 , 23278 , 88065 , 96615 , 174585 , 176130 , 193230 , 349170 , 663423 , 1326846 , 9951345 , 19902690
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19902689
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19902690 can be divided by 32 positive divisors.
The sum of these divisors (counting 19902690) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001011111011000011100010
3
Ternary
1101110011100200
4
Quaternary
1023323003202
5
Quinary
20043341230
6
Senary
1550330030
8
Octal
113730342
10
Decimal
19902690
12
Duodecimal
67b9916
16
Hexadecimal
12fb0e2
20
Vigesimal
647gea
36
Base36
bul0i
md5
5ea69de134e91b7f8c8653e3ece15ac7
sha1
262f08aab56be96c6a66f88896879c1a096a4dcf
sha256
21e0dfd64be28b3098fe6c852deceb332d435cefa716b536a834c1ef7941efba
sha512
5120a9df5c3b32fb1f7fc61a7bf5e9412dab06dee916b3c7dddb7f3152c8582e7939ebf144a920a10505a45557cf4a40299a5298536f5593456aa1907a7e189a
ripemd-160
4cdcb0a63f6400f75ef151e1fae07da9c8b5f7ef
Diameter
39805380
Circumference
125052289.38135
Area
1.2444384746737E+15
Volume
3.3023564247337E+22
Surface area
4.9777538986946E+15
Circumference
125052289.38135
Perimeter
79610760
Area
396117069236100
Diagonal
28146654.125707
Surface area
2376702415416600
Volume
7.8837952327146E+21
Space diagonal
34472470.287293
Perimeter
59708070
Area
1.7152372241555E+14
Altitude
17236235.143647
Surface area
1.7152372241555E+14
Volume
9.2911417842312E+20
Height
9382218.0419025