30991649 is an odd 8-digits composite number following 30991648
and preceding 30991650 . In scientific notation, it is written as 3.0991649 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 27363600 positive integers (up to 30991649) that are relatively prime to 30991649.
30991649 has 8 divisors, whose sum is 34827072
The reverse of 30991649 is 94619903
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
thirty million nine hundred ninety-one thousand six hundred forty-nine
Scientific notation
3.0991649 × 10^7
Engineering notation
3.0991649 × 10^6
Prime Factorization
23 × 13 × 103651
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30991649
Product of the distinct prime numbers
The prime factorization of 30991649 is 23 × 13 × 103651.
Since it has a total of 3 prime factors.
2 , 10 , 4 , 5 , 147 , 705 , 3959 , 4555 , 10678 , 42855 , 430235 , 260949 , 757359 , 2137779 , 8875717 , 87846990 , 827516725 , 440961678 , 3426573478 , 4364074937
n×2
61983298
n×3
92974947
n×4
123966596
n×5
154958245
n÷2
15495824.5
n÷3
10330549.666667
n÷3
7747912.25
n÷5
6198329.8
n2
960482307739201
n3
2.9766930552163E+22
n4
9.2252626348002E+29
n5
2.8590610151054E+37
2 √n
5567.0143703784
3 √n
314.10985445865
4 √n
74.612427720712
5 √n
31.495531159415
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
-30991648
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 30991649 can be divided by 8 positive divisors.
The sum of these divisors (counting 30991649) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110001110010100100001
3
Ternary
2011022112112212
4
Quaternary
1312032110201
5
Quinary
30413213044
6
Senary
3024131505
8
Octal
166162441
10
Decimal
30991649
12
Duodecimal
a466b95
16
Hexadecimal
1d8e521
20
Vigesimal
9ddj29
36
Base36
ig9b5
md5
1cb3c70bedbbbc6ed3e212b5a755e269
sha1
f3da19fd6fcd1065410ad9c7377c6c7c57cef279
sha256
c65b0c64d33057b11c5e54043149af84f185d98ca154811152f469cac610e198
sha512
7bc01eeb5dacf728758cd6a1fb5e8a03cb6599eadec21c286ad7fbf9bf31184c2889834bffef5e5cb892a7b263b5e06463cd37c603c6574b0ac111c8668d987c
ripemd-160
7344073766b38c4b6ac32de3f3df02f9b39141fa
Diameter
61983298
Circumference
194726273.64207
Area
3.0174441618964E+15
Volume
1.2468742712346E+23
Surface area
1.2069776647586E+16
Circumference
194726273.64207
Perimeter
123966596
Area
960482307739201
Diagonal
43828810.336107
Surface area
5762893846435206
Volume
2.9766930552163E+22
Space diagonal
53679110.678341
Perimeter
92974947
Area
4.1590103919383E+14
Altitude
26839555.339171
Surface area
4.1590103919383E+14
Volume
3.5080664080906E+21
Height
14609603.445369