19145 is an odd 5-digits composite number following 19144
and preceding 19146 . In scientific notation, it is written as 1.9145 × 10^4.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 13104 positive integers (up to 19145) that are relatively prime to 19145.
19145 has 8 divisors, whose sum is 26304
The reverse of 19145 is 54191
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 20
Digital Root 2
Name
nineteen thousand one hundred forty-five
Scientific notation
1.9145 × 10^4
Engineering notation
1.9145 × 10^3
Prime Factorization
7 × 5 × 547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19145
Product of the distinct prime numbers
The prime factorization of 19145 is 7 × 5 × 547.
Since it has a total of 3 prime factors.
4 , 5 , 90 , 34 , 279 , 123 , 7516 , 3106 , 59619 , 30343 , 105327 , 786593 , 8402852 , 9098365 , 76500387 , 65904730 , 153129016 , 928310199 , 2344947137 , 3202803419
n×2
38290
n×3
57435
n×4
76580
n×5
95725
n÷2
9572.5
n÷3
6381.6666666667
n÷3
4786.25
n÷5
3829
n2
366531025
n3
7017236473625
n4
134344992287550625
n5
2.5720348773452E+21
2 √n
138.36545811726
3 √n
26.751724930257
4 √n
11.762884770211
5 √n
7.1847402903044
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
-19144
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 19145 can be divided by 8 positive divisors.
The sum of these divisors (counting 19145) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011001001
3
Ternary
222021002
4
Quaternary
10223021
5
Quinary
1103040
6
Senary
224345
8
Octal
45311
10
Decimal
19145
12
Duodecimal
b0b5
16
Hexadecimal
4ac9
20
Vigesimal
27h5
36
Base36
ert
md5
aae9f5d3f077388ec544d70d8a949326
sha1
15cc40495673f9f02df62bb9e3f5a3fb7b9739cd
sha256
cd9731fe59d7010615df6e9e722620ce22dc27ad0b0b3a4e0fe0945c06ca2a91
sha512
b96252e474a90e87dc1618e7b01f8db4a19d9f4ef02facca411d118b3c82737c3e5791ea14256a492f02cbdea1bfe175692ecc53f3210574e281b53f3fc5d534
ripemd-160
c131ae8c7d97314b70e62851e866f3344771a2bf
Diameter
38290
Circumference
120291.58270595
Area
1151491175.4527
Volume
29393731405390
Surface area
4605964701.8109
Circumference
120291.58270595
Perimeter
76580
Area
366531025
Diagonal
27075.118651633
Surface area
2199186150
Volume
7017236473625
Space diagonal
33160.112710906
Perimeter
57435
Area
158712589.46257
Altitude
16580.056355453
Surface area
158712589.46257
Volume
826989249281.64
Height
9025.0395505443