30845 is an odd 5-digits composite number following 30844
and preceding 30846 . In scientific notation, it is written as 3.0845 × 10^4.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 23760 positive integers (up to 30845) that are relatively prime to 30845.
30845 has 4 divisors, whose sum is 31200
The reverse of 30845 is 54803
Previous prime number is 155
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 20
Digital Root 2
Name
thirty thousand eight hundred forty-five
Scientific notation
3.0845 × 10^4
Engineering notation
3.0845 × 10^3
Prime Factorization
155 × 199
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30845
Product of the distinct prime numbers
The prime factorization of 30845 is 155 × 199.
Since it has a total of 2 prime factors.
4 , 4 , 40 , 67 , 508 , 467 , 1886 , 1556 , 48770 , 36303 , 917319 , 407003 , 6823143 , 9716591 , 44137879 , 71366241 , 865772003 , 771773567 , 5064009001 , 9126971706
n×2
61690
n×3
92535
n×4
123380
n×5
154225
n÷2
15422.5
n÷3
10281.666666667
n÷3
7711.25
n÷5
6169
n2
951414025
n3
29346365601125
n4
905188646966700625
n5
2.7920543815688E+22
2 √n
175.62744660218
3 √n
31.361362675932
4 √n
13.252450588558
5 √n
7.9038184304742
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
-30844
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 30845 can be divided by 4 positive divisors.
The sum of these divisors (counting 30845) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100001111101
3
Ternary
1120022102
4
Quaternary
13201331
5
Quinary
1441340
6
Senary
354445
8
Octal
74175
10
Decimal
30845
12
Duodecimal
15a25
16
Hexadecimal
787d
20
Vigesimal
3h25
36
Base36
nst
md5
6dd2f7fb9018bfcd8c3be1f8e65224ae
sha1
4497f128de5d46de4c3d0f383dc9b6e5c3a04642
sha256
0342f0947e15103ce1af2a3577f5c8c9f6f7794b23552430411f48769cba7147
sha512
f254a97763a0b6390c540db13ac8fe2d8ae2e65f3b7b98e23222e5ac58f4fa98ac9c9d1966a6fd9f0d522cb25a873356c52fd74760d4f01e985de7954e8a8c95
ripemd-160
a4b6b09d7b247d3c72c14d7910c57d6c9fa1f6bf
Diameter
61690
Circumference
193804.85079995
Area
2988955311.4623
Volume
1.2292576877607E+14
Surface area
11955821245.849
Circumference
193804.85079995
Perimeter
123380
Area
951414025
Diagonal
43621.417331398
Surface area
5708484150
Volume
29346365601125
Space diagonal
53425.107159462
Perimeter
92535
Area
411974357.5834
Altitude
26712.553579731
Surface area
411974357.5834
Volume
3458502353289.2
Height
14540.472443799