19991211 is an odd 8-digits composite number following 19991210
and preceding 19991212 . In scientific notation, it is written as 1.9991211 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12283488 positive integers (up to 19991211) that are relatively prime to 19991211.
19991211 has 16 divisors, whose sum is 28819200
The reverse of 19991211 is 11219991
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
nineteen million nine hundred ninety-one thousand two hundred eleven
Scientific notation
1.9991211 × 10^7
Engineering notation
1.9991211 × 10^6
Prime Factorization
3 × 37 × 19 × 9479
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19991211
Product of the distinct prime numbers
The prime factorization of 19991211 is 3 × 37 × 19 × 9479.
Since it has a total of 4 prime factors.
5 , 1 , 88 , 61 , 159 , 935 , 8102 , 7833 , 27122 , 7617 , 660513 , 727495 , 4299223 , 9002782 , 48590849 , 35886437 , 205587531 , 509669359 , 521694811 , 4900240989
n×2
39982422
n×3
59973633
n×4
79964844
n×5
99956055
n÷2
9995605.5
n÷3
6663737
n÷3
4997802.75
n÷5
3998242.2
n2
399648517246521
n3
7.9894578341123E+21
n4
1.5971893733734E+29
n5
3.1929749770066E+36
2 √n
4471.1532069478
3 √n
271.40199413959
4 √n
66.866682338425
5 √n
28.851461694358
1 , 3 , 19 , 37 , 57 , 111 , 703 , 2109 , 9479 , 28437 , 180101 , 350723 , 540303 , 1052169 , 6663737 , 19991211
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
-19991210
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 19991211 can be divided by 16 positive divisors.
The sum of these divisors (counting 19991211) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010000101010101011
3
Ternary
1101121122210020
4
Quaternary
1030100222223
5
Quinary
20104204321
6
Senary
1552251523
8
Octal
114205253
10
Decimal
19991211
12
Duodecimal
6840ba3
16
Hexadecimal
1310aab
20
Vigesimal
64ii0b
36
Base36
bwhbf
md5
fb04ec15e1aae23375194a5ad98cc031
sha1
8f7a1a06e2f0ea919c9cb68da38bf1a6791295b6
sha256
8a3911619d85bec2553062aad6fd114f4604520dee77261db708e3e9718952c2
sha512
15f75892cf2c3b8b67e4c11064cf94e284875412e655b7e09d0b8c0b823cedde584e428112753f316b5803b77a127663f374f95bf8e5aa148c8bbe3ad7284f56
ripemd-160
8be4055bda9637cbba65707b2ab0a1e53eae624d
Diameter
39982422
Circumference
125608483.22793
Area
1.2555328457997E+15
Volume
3.3466162717084E+22
Surface area
5.0221313831989E+15
Circumference
125608483.22793
Perimeter
79964844
Area
399648517246521
Diagonal
28271841.724462
Surface area
2397891103479126
Volume
7.9894578341123E+21
Space diagonal
34625793.15683
Perimeter
59973633
Area
1.7305288426014E+14
Altitude
17312896.578415
Surface area
1.7305288426014E+14
Volume
9.4156663541747E+20
Height
9423947.2414874