30891471 is an odd 8-digits composite number following 30891470
and preceding 30891472 . In scientific notation, it is written as 3.0891471 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 18965376 positive integers (up to 30891471) that are relatively prime to 30891471.
30891471 has 8 divisors, whose sum is 31758240
The reverse of 30891471 is 17419803
Previous prime number is 1213
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
thirty million eight hundred ninety-one thousand four hundred seventy-one
Scientific notation
3.0891471 × 10^7
Engineering notation
3.0891471 × 10^6
Prime Factorization
39 × 1213 × 653
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30891471
Product of the distinct prime numbers
The prime factorization of 30891471 is 39 × 1213 × 653.
Since it has a total of 3 prime factors.
5 , 1 , 54 , 61 , 156 , 106 , 4425 , 442 , 38333 , 52527 , 66504 , 920521 , 5006127 , 4964803 , 99695099 , 21390676 , 411520208 , 368089975 , 2712408089 , 6625444375
n×2
61782942
n×3
92674413
n×4
123565884
n×5
154457355
n÷2
15445735.5
n÷3
10297157
n÷3
7722867.75
n÷5
6178294.2
n2
954282980543841
n3
2.9479205019264E+22
n4
9.1065600695564E+29
n5
2.8131503629846E+37
2 √n
5558.0096257563
3 √n
313.77104423324
4 √n
74.552059835771
5 √n
31.475143430001
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
-30891470
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 30891471 can be divided by 8 positive divisors.
The sum of these divisors (counting 30891471) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101110101110111001111
3
Ternary
2011010110010120
4
Quaternary
1311311313033
5
Quinary
30402011341
6
Senary
3022040023
8
Octal
165656717
10
Decimal
30891471
12
Duodecimal
a419013
16
Hexadecimal
1d75dcf
20
Vigesimal
9d18db
36
Base36
ie40f
md5
e2c8aac5d5a99171b5c9f70260de9363
sha1
53cb84f02b7f37edf92134072f412ef7875258b1
sha256
1063a38f9e9dd8b941592cb5bdfbd074b0779b09c736c685259692ebe96fc6a8
sha512
5dfdf2dfdc2370dc605916b86c38799b221b6f9ddd14bfb61a2610cc7adf2b6542727303f064a3dcfc8753c7cce1176d5ab0d69b75e4b9b70432dd041081413f
ripemd-160
25a7ebfb0fe40af37b5421276a108b8201143053
Diameter
61782942
Circumference
194096836.70436
Area
2.9979684011223E+15
Volume
1.2348220522958E+23
Surface area
1.1991873604489E+16
Circumference
194096836.70436
Perimeter
123565884
Area
954282980543841
Diagonal
43687137.249855
Surface area
5725697883263046
Volume
2.9479205019264E+22
Space diagonal
53505597.292541
Perimeter
92674413
Area
4.1321665177505E+14
Altitude
26752798.64627
Surface area
4.1321665177505E+14
Volume
3.4741576288516E+21
Height
14562379.083285