19912 is an even 5-digits composite number following 19911
and preceding 19913 . In scientific notation, it is written as 1.9912 × 10^4.
The sum of its digits is 22. It has a total of 5 prime factors and 16 positive divisors.
There are 9360 positive integers (up to 19912) that are relatively prime to 19912.
19912 has 16 divisors, whose sum is 39600
The reverse of 19912 is 21991
Previous prime number is 19
Is Prime? no
Number parity even
Number length 5
Sum of Digits 22
Digital Root 4
Name
nineteen thousand nine hundred twelve
Scientific notation
1.9912 × 10^4
Engineering notation
1.9912 × 10^3
Prime Factorization
2 × 2 × 2 × 19 × 131
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
4978
Product of the distinct prime numbers
The prime factorization of 19912 is 2 × 2 × 2 × 19 × 131.
Since it has a total of 5 prime factors.
6 , 2 , 11 , 19 , 653 , 127 , 214 , 9953 , 90057 , 43112 , 704918 , 323105 , 925343 , 8421047 , 22227809 , 33710491 , 461761269 , 801153364 , 5995294304 , 8634059030
n×2
39824
n×3
59736
n×4
79648
n×5
99560
n÷2
9956
n÷3
6637.3333333333
n÷3
4978
n÷5
3982.4
n2
396487744
n3
7894863958528
n4
157202531142209536
n5
3.1302168001037E+21
2 √n
141.1098862589
3 √n
27.104306174282
4 √n
11.878968232086
5 √n
7.2414073206226
1 , 2 , 4 , 8 , 19 , 38 , 76 , 131 , 152 , 262 , 524 , 1048 , 2489 , 4978 , 9956 , 19912
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
-19911
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 19912 can be divided by 16 positive divisors.
The sum of these divisors (counting 19912) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111001000
3
Ternary
1000022111
4
Quaternary
10313020
5
Quinary
1114122
6
Senary
232104
8
Octal
46710
10
Decimal
19912
12
Duodecimal
b634
16
Hexadecimal
4dc8
20
Vigesimal
29fc
36
Base36
fd4
md5
de3a1d8c27100134e970acb749429fca
sha1
7eab100adc70f9c24a5d0da979ff4158fb24f345
sha256
4469a34e67107cc2a2accecb60f18a1f4c8f0579b355e562d6a49ef8bb48ca7f
sha512
b3af8c6125f6f43cd7503b501e85c402416630289f4e21334c5fc3f46e26adb48f41941cb9f3e912ca78124b45457aa7b3ebe8eea8b33c77a293daf0b3d21833
ripemd-160
54dfa4d941aab839d998a540c767b6381d74a9cf
Diameter
39824
Circumference
125110.78583656
Area
1245602983.7888
Volume
33069928817603
Surface area
4982411935.1552
Circumference
125110.78583656
Perimeter
79648
Area
396487744
Diagonal
28159.820453973
Surface area
2378926464
Volume
7894863958528
Space diagonal
34488.595680311
Perimeter
59736
Area
171684229.29659
Altitude
17244.297840156
Surface area
171684229.29659
Volume
930418640270.07
Height
9386.606817991