42145 is an odd 5-digits composite number following 42144
and preceding 42146 . In scientific notation, it is written as 4.2145 × 10^4.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 33712 positive integers (up to 42145) that are relatively prime to 42145.
42145 has 4 divisors, whose sum is 50580
The reverse of 42145 is 54124
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 16
Digital Root 7
Name
forty-two thousand one hundred forty-five
Scientific notation
4.2145 × 10^4
Engineering notation
4.2145 × 10^3
Prime Factorization
5 × 8429
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
42145
Product of the distinct prime numbers
The prime factorization of 42145 is 5 × 8429.
Since it has a total of 2 prime factors.
10 , 9 , 86 , 48 , 965 , 2 , 1007 , 9292 , 44782 , 89811 , 244507 , 202599 , 1186343 , 7811285 , 45169097 , 32939082 , 42977130 , 105771042 , 7318355734 , 8023674008
n×2
84290
n×3
126435
n×4
168580
n×5
210725
n÷2
21072.5
n÷3
14048.333333333
n÷3
10536.25
n÷5
8429
n2
1776201025
n3
74857992198625
n4
3154890081211050625
n5
1.3296284247264E+23
2 √n
205.29247428973
3 √n
34.800222396958
4 √n
14.328031068145
5 √n
8.4129675083638
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
-42144
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 42145 can be divided by 4 positive divisors.
The sum of these divisors (counting 42145) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010010100001
3
Ternary
2010210221
4
Quaternary
22102201
5
Quinary
2322040
6
Senary
523041
8
Octal
122241
10
Decimal
42145
12
Duodecimal
20481
16
Hexadecimal
a4a1
20
Vigesimal
5575
36
Base36
wip
md5
0e4996ce1ba7f629bb900d7a38b2dc48
sha1
8e255cb8c7af3bbf52ae8adab4a920989279e8f5
sha256
ebcbd43c67c580c8b03bf4c2af417e6732e61da2c1d76f24f48662def1fa0289
sha512
618c54059cf42502e8cc8a10910b75e7b766e0a2876f816a5194f5d2f214dfd4220212ad0e179096bc26d4f6c0507bfdf5dd07963e54945230d443d1509a70fc
ripemd-160
b944e829241b4556162e6c7e9d052254ed05a82c
Diameter
84290
Circumference
264804.84477108
Area
5580100091.4387
Volume
3.1356442447158E+14
Surface area
22320400365.755
Circumference
264804.84477108
Perimeter
168580
Area
1776201025
Diagonal
59602.030586214
Surface area
10657206150
Volume
74857992198625
Space diagonal
72997.28128499
Perimeter
126435
Area
769117604.93898
Altitude
36498.640642495
Surface area
769117604.93898
Volume
8822098984942.9
Height
19867.343528738