19913 is an odd 5-digits prime number following 19912
and preceding 19914 . In scientific notation, it is written as 1.9913 × 10^4.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 19912 positive integers (up to 19913) that are relatively prime to 19913.
19913 has 2 divisors, whose sum is 19914
The reverse of 19913 is 31991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 5
Sum of Digits 23
Digital Root 5
Name
nineteen thousand nine hundred thirteen
Scientific notation
1.9913 × 10^4
Engineering notation
1.9913 × 10^3
Prime Factorization
19913
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19913
Product of the distinct prime numbers
The prime factorization of 19913 is 19913.
Since it has a total of 1 prime factors.
7 , 4 , 62 , 83 , 449 , 995 , 3931 , 4462 , 77714 , 48303 , 689204 , 242011 , 5857842 , 8624662 , 90750871 , 29300621 , 79815151 , 620397147 , 3267980775 , 6989562809
n×2
39826
n×3
59739
n×4
79652
n×5
99565
n÷2
9956.5
n÷3
6637.6666666667
n÷3
4978.25
n÷5
3982.6
n2
396527569
n3
7896053481497
n4
157234112977049761
n5
3.131002891712E+21
2 √n
141.11342955226
3 √n
27.104759901556
4 √n
11.879117372611
5 √n
7.2414800532648
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19914
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9957
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
141.11697275665
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999899568143
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19913 can be divided by 2 positive divisors.
The sum of these divisors (counting 19913) is 19914, the average is 9957.
Base
System
Value
2
Binary
100110111001001
3
Ternary
1000022112
4
Quaternary
10313021
5
Quinary
1114123
6
Senary
232105
8
Octal
46711
10
Decimal
19913
12
Duodecimal
b635
16
Hexadecimal
4dc9
20
Vigesimal
29fd
36
Base36
fd5
md5
4f4c7d3dd85ea84eb208d7cd031dbfe7
sha1
1f19082215f9e039425eaa6973d8e751f27019e0
sha256
5b26dbcd7c6ef6cb05577fd50df90ee56b31839d521cf009663acb60f77a468b
sha512
fd731d1595b3356827bef216451dfa8016f358c7a1d725bd90782eea4ad26f6acd76500bd2e7937bae336825c0deddaf2c32ea1ce451df394d5cf59c69fc8f8d
ripemd-160
d3d04a2de88d7aad879437a301bf237eddf0e067
Diameter
39826
Circumference
125117.06902187
Area
1245728097.7162
Volume
33074911479764
Surface area
4982912390.8649
Circumference
125117.06902187
Perimeter
79652
Area
396527569
Diagonal
28161.234667535
Surface area
2379165414
Volume
7896053481497
Space diagonal
34490.327731119
Perimeter
59739
Area
171701474.02744
Altitude
17245.16386556
Surface area
171701474.02744
Volume
930558826896.36
Height
9387.0782225118