19990906 is an even 8-digits composite number following 19990905
and preceding 19990907 . In scientific notation, it is written as 1.9990906 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 9226560 positive integers (up to 19990906) that are relatively prime to 19990906.
19990906 has 8 divisors, whose sum is 32293044
The reverse of 19990906 is 60909991
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
nineteen million nine hundred ninety thousand nine hundred six
Scientific notation
1.9990906 × 10^7
Engineering notation
1.9990906 × 10^6
Prime Factorization
2 × 13 × 768881
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19990906
Product of the distinct prime numbers
The prime factorization of 19990906 is 2 × 13 × 768881.
Since it has a total of 3 prime factors.
7 , 6 , 66 , 41 , 905 , 731 , 8276 , 3091 , 37670 , 41548 , 526675 , 146781 , 1349314 , 8655293 , 61798267 , 12844605 , 341311157 , 888001098 , 2167335371 , 2867962032
n×2
39981812
n×3
59972718
n×4
79963624
n×5
99954530
n÷2
9995453
n÷3
6663635.3333333
n÷3
4997726.5
n÷5
3998181.2
n2
399636322700836
n3
7.9890921612981E+21
n4
1.5970919042185E+29
n5
3.1927314130592E+36
2 √n
4471.119099286
3 √n
271.40061389922
4 √n
66.866427295662
5 √n
28.851373658175
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
-19990905
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 19990906 can be divided by 8 positive divisors.
The sum of these divisors (counting 19990906) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010000100101111010
3
Ternary
1101121122100221
4
Quaternary
1030100211322
5
Quinary
20104202111
6
Senary
1552250254
8
Octal
114204572
10
Decimal
19990906
12
Duodecimal
684098a
16
Hexadecimal
131097a
20
Vigesimal
64ih56
36
Base36
bwh2y
md5
847dc596831e8e224cc6ebbd78ab1575
sha1
daee6fcc08b2a4dc9054f1f475c2bc18d206fe87
sha256
c189adc511062179d086bed1ee3ae16919a0ee97631aa124e27c07e57a0bd4df
sha512
4e4bea3572b888345eca3254befe0271bd62ddeccac7036a38824984b3b0c6a6c8f5705abf60590846a4dea2c2524224929f3d6105df9f733f0ea082b033df53
ripemd-160
2074a9f4ce310f9d088898c056a06f57c8c6e860
Diameter
39981812
Circumference
125606566.85641
Area
1.2554945355046E+15
Volume
3.3464630990381E+22
Surface area
5.0219781420183E+15
Circumference
125606566.85641
Perimeter
79963624
Area
399636322700836
Diagonal
28271410.389326
Surface area
2397817936205016
Volume
7.9890921612981E+21
Space diagonal
34625264.881334
Perimeter
59972718
Area
1.7304760386696E+14
Altitude
17312632.440667
Surface area
1.7304760386696E+14
Volume
9.4152354046303E+20
Height
9423803.4631086