30991609 is an odd 8-digits composite number following 30991608
and preceding 30991610 . In scientific notation, it is written as 3.0991609 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 6 positive divisors.
There are 28174080 positive integers (up to 30991609) that are relatively prime to 30991609.
30991609 has 6 divisors, whose sum is 34065290
The reverse of 30991609 is 90619903
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
thirty million nine hundred ninety-one thousand six hundred nine
Scientific notation
3.0991609 × 10^7
Engineering notation
3.0991609 × 10^6
Prime Factorization
11 × 11 × 256129
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2817419
Product of the distinct prime numbers
The prime factorization of 30991609 is 11 × 11 × 256129.
Since it has a total of 3 prime factors.
6 , 7 , 35 , 42 , 834 , 293 , 8123 , 5898 , 43895 , 88369 , 766811 , 157933 , 3380819 , 1900841 , 48627671 , 92743396 , 345663177 , 181326154 , 3937152617 , 111323523
n×2
61983218
n×3
92974827
n×4
123966436
n×5
154958045
n÷2
15495804.5
n÷3
10330536.333333
n÷3
7747902.25
n÷5
6198321.8
n2
960479828408881
n3
2.9766815294435E+22
n4
9.2252150078035E+29
n5
2.8590425646278E+37
2 √n
5567.0107777873
3 √n
314.10971932118
4 √n
74.61240364569
5 √n
31.495523029341
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30991608
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30991609 can be divided by 6 positive divisors.
The sum of these divisors (counting 30991609) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1110110001110010011111001
3
Ternary
2011022112111101
4
Quaternary
1312032103321
5
Quinary
30413212414
6
Senary
3024131401
8
Octal
166162371
10
Decimal
30991609
12
Duodecimal
a466b61
16
Hexadecimal
1d8e4f9
20
Vigesimal
9ddj09
36
Base36
ig9a1
md5
e7911ac884396f6e764d2f1e71d3efd8
sha1
6fce30ec7c2ed136b352681171b07dfb9b814b90
sha256
8c0948246c31fcf98824c98146f54c37a82015964f39f72d2a7a850991f54990
sha512
1acfeddbccd2b521110d5020a2e3d073f592603e2f5d3087fe32e268b734776b451045aff234a31b5b360682adca605a1e22f5977e082a97d0b7621bbc52ce2a
ripemd-160
4ea154a4e4caf471bc968e55a80f479073f2c055
Diameter
61983218
Circumference
194726022.31465
Area
3.0174363728505E+15
Volume
1.2468694433302E+23
Surface area
1.2069745491402E+16
Circumference
194726022.31465
Perimeter
123966436
Area
960479828408881
Diagonal
43828753.767564
Surface area
5762878970453286
Volume
2.9766815294435E+22
Space diagonal
53679041.396309
Perimeter
92974827
Area
4.158999656123E+14
Altitude
26839520.698154
Surface area
4.158999656123E+14
Volume
3.5080528248371E+21
Height
14609584.589188