30105991 is an odd 8-digits composite number following 30105990
and preceding 30105992 . In scientific notation, it is written as 3.0105991 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 28513560 positive integers (up to 30105991) that are relatively prime to 30105991.
30105991 has 8 divisors, whose sum is 31739904
The reverse of 30105991 is 19950103
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirty million one hundred five thousand nine hundred ninety-one
Scientific notation
3.0105991 × 10^7
Engineering notation
3.0105991 × 10^6
Prime Factorization
47 × 31 × 20663
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30105991
Product of the distinct prime numbers
The prime factorization of 30105991 is 47 × 31 × 20663.
Since it has a total of 3 prime factors.
1 , 9 , 46 , 76 , 243 , 355 , 7310 , 4140 , 70661 , 59511 , 431030 , 261582 , 7781883 , 5792547 , 79319027 , 50608478 , 36712840 , 674563276 , 4542818326 , 3279983471
n×2
60211982
n×3
90317973
n×4
120423964
n×5
150529955
n÷2
15052995.5
n÷3
10035330.333333
n÷3
7526497.75
n÷5
6021198.2
n2
906370694092081
n3
2.7287187959E+22
n4
8.2150783510896E+29
n5
2.473230749022E+37
2 √n
5486.8926543172
3 √n
311.0887523567
4 √n
74.073562451911
5 √n
31.313425938302
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
-30105990
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 30105991 can be divided by 8 positive divisors.
The sum of these divisors (counting 30105991) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110010110110000110000111
3
Ternary
2002122112122201
4
Quaternary
1302312012013
5
Quinary
30201342431
6
Senary
2553135331
8
Octal
162660607
10
Decimal
30105991
12
Duodecimal
a0ba547
16
Hexadecimal
1cb6187
20
Vigesimal
9834jb
36
Base36
hx9xj
md5
e929456742125f398755def45779f868
sha1
7c9fecbfc6199843c3c907fbe88cd39397afe680
sha256
3bcf44dd78d63f84516608955878a7a66899902f57c07168848b1a30dae190e6
sha512
a247dbaeb5df21c0d7fb938f2725804c1f3fd7b988e6f563d4e8bb8975cff9e9f3adc0f9dbced86629f82491f2a5231fec811a7608b4c34f53771a7888f2505c
ripemd-160
bb56410be34a11966cb4de8826833495a77427c7
Diameter
60211982
Circumference
189161520.30928
Area
2.8474475139888E+15
Volume
1.1430030563882E+23
Surface area
1.1389790055955E+16
Circumference
189161520.30928
Perimeter
120423964
Area
906370694092081
Diagonal
42576300.780882
Surface area
5438224164552486
Volume
2.7287187959E+22
Space diagonal
52145106.024211
Perimeter
90317973
Area
3.9247002316474E+14
Altitude
26072553.012106
Surface area
3.9247002316474E+14
Volume
3.2158259408868E+21
Height
14192100.260294