30645 is an odd 5-digits composite number following 30644
and preceding 30646 . In scientific notation, it is written as 3.0645 × 10^4.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 16272 positive integers (up to 30645) that are relatively prime to 30645.
30645 has 8 divisors, whose sum is 41952
The reverse of 30645 is 54603
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 18
Digital Root 9
Name
thirty thousand six hundred forty-five
Scientific notation
3.0645 × 10^4
Engineering notation
3.0645 × 10^3
Prime Factorization
45 × 3 × 227
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30645
Product of the distinct prime numbers
The prime factorization of 30645 is 45 × 3 × 227.
Since it has a total of 3 prime factors.
6 , 9 , 32 , 15 , 791 , 896 , 2284 , 8101 , 96251 , 73763 , 236251 , 745184 , 9348965 , 1975308 , 99676413 , 98509594 , 298478699 , 374200837 , 3229287943 , 6069964267
n×2
61290
n×3
91935
n×4
122580
n×5
153225
n÷2
15322.5
n÷3
10215
n÷3
7661.25
n÷5
6129
n2
939116025
n3
28779210586125
n4
881938908411800625
n5
2.702701784828E+22
2 √n
175.05713353074
3 √n
31.293432939918
4 √n
13.230915823583
5 √n
7.8935420187462
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
-30644
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 30645 can be divided by 8 positive divisors.
The sum of these divisors (counting 30645) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011110110101
3
Ternary
1120001000
4
Quaternary
13132311
5
Quinary
1440040
6
Senary
353513
8
Octal
73665
10
Decimal
30645
12
Duodecimal
15899
16
Hexadecimal
77b5
20
Vigesimal
3gc5
36
Base36
nn9
md5
5be5a7506bfc5ce83afa8354f9ac5fff
sha1
a647ca6aa64a2880e22e24cf6359fa23e8891420
sha256
715929f93019d95c25c7dbf35420928e77ff3eb218e3234bc8f664b87f8f8b6c
sha512
6970190f1494f2f1cf9cc072ee7f58ed55276963acbdc736e24519ab48bc9d666ea7db9c6776050a04bffc7e8a4ca7e9f2e018e3fb3de3c92350247f74993772
ripemd-160
ddb22a55439313643a6804a94872300aa0ba1e48
Diameter
61290
Circumference
192548.21373852
Area
2950320005.0084
Volume
1.2055007540465E+14
Surface area
11801280020.034
Circumference
192548.21373852
Perimeter
122580
Area
939116025
Diagonal
43338.574618923
Surface area
5634696150
Volume
28779210586125
Space diagonal
53078.696997948
Perimeter
91935
Area
406649167.37553
Altitude
26539.348498974
Surface area
406649167.37553
Volume
3391662493774.1
Height
14446.191539641