19909971 is an odd 8-digits composite number following 19909970
and preceding 19909972 . In scientific notation, it is written as 1.9909971 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 13273308 positive integers (up to 19909971) that are relatively prime to 19909971.
19909971 has 4 divisors, whose sum is 22122200
The reverse of 19909971 is 17990991
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
nineteen million nine hundred nine thousand nine hundred seventy-one
Scientific notation
1.9909971 × 10^7
Engineering notation
1.9909971 × 10^6
Prime Factorization
9 × 2212219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19909971
Product of the distinct prime numbers
The prime factorization of 19909971 is 9 × 2212219.
Since it has a total of 2 prime factors.
10 , 3 , 23 , 4 , 478 , 953 , 266 , 8332 , 80544 , 32698 , 100639 , 350487 , 4898678 , 6136792 , 84645086 , 52574702 , 939450155 , 721957846 , 2841834946 , 9784460526
n×2
39819942
n×3
59729913
n×4
79639884
n×5
99549855
n÷2
9954985.5
n÷3
6636657
n÷3
4977492.75
n÷5
3981994.2
n2
396406945220841
n3
7.8924507835455E+21
n4
1.5713846621932E+29
n5
3.1286223054111E+36
2 √n
4462.059053845
3 √n
271.03385514959
4 √n
66.798645598882
5 √n
28.827974251844
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19909970
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19909971 can be divided by 4 positive divisors.
The sum of these divisors (counting 19909971) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011111100110101010011
3
Ternary
1101110112100100
4
Quaternary
1023330311103
5
Quinary
20044104341
6
Senary
1550423443
8
Octal
113746523
10
Decimal
19909971
12
Duodecimal
6801b83
16
Hexadecimal
12fcd53
20
Vigesimal
648eib
36
Base36
buqmr
md5
921b091663a733a2466c2dc31dc0eccd
sha1
4b77d4b54413c2736dbda2946bbcb5de806c9bdb
sha256
a9cbb052cf7a7de4a37ff565fe04e62bc44d12bca39b7912d48002a10d8f929e
sha512
7b8237649521544c7ae6d903d70b5e3d3613c6a349b77442557aeb83e0fe2fb10778d2fcf7bb6a308d6a87949113326f64bee0164b692fe164363749a2be68a1
ripemd-160
dd44897a1a023513351d7382dfff50ea77191ea1
Diameter
39819942
Circumference
125098037.25357
Area
1.2453491469378E+15
Volume
3.3059820533874E+22
Surface area
4.9813965877511E+15
Circumference
125098037.25357
Perimeter
79639884
Area
396406945220841
Diagonal
28156951.014655
Surface area
2378441671325046
Volume
7.8924507835455E+21
Space diagonal
34485081.349223
Perimeter
59729913
Area
1.7164924239892E+14
Altitude
17242540.674611
Surface area
1.7164924239892E+14
Volume
9.3013424487102E+20
Height
9385650.3382183