30797981 is an odd 8-digits composite number following 30797980
and preceding 30797982 . In scientific notation, it is written as 3.0797981 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 30663264 positive integers (up to 30797981) that are relatively prime to 30797981.
30797981 has 4 divisors, whose sum is 30932700
The reverse of 30797981 is 18979703
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
thirty million seven hundred ninety-seven thousand nine hundred eighty-one
Scientific notation
3.0797981 × 10^7
Engineering notation
3.0797981 × 10^6
Prime Factorization
229 × 134489
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30797981
Product of the distinct prime numbers
The prime factorization of 30797981 is 229 × 134489.
Since it has a total of 2 prime factors.
10 , 9 , 95 , 94 , 192 , 458 , 3805 , 4295 , 35336 , 85176 , 761266 , 382307 , 1807568 , 5859305 , 77685607 , 79727815 , 16326155 , 425486343 , 7074936950 , 9019800480
n×2
61595962
n×3
92393943
n×4
123191924
n×5
153989905
n÷2
15398990.5
n÷3
10265993.666667
n÷3
7699495.25
n÷5
6159596.2
n2
948515633676361
n3
2.9212366464168E+22
n4
8.9968190732847E+29
n5
2.7708386287946E+37
2 √n
5549.5928679499
3 √n
313.45419197116
4 √n
74.495589587236
5 √n
31.456069039851
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
-30797980
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 30797981 can be divided by 4 positive divisors.
The sum of these divisors (counting 30797981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101011111000010011101
3
Ternary
2010221200212222
4
Quaternary
1311133002131
5
Quinary
30341013411
6
Senary
3020035125
8
Octal
165370235
10
Decimal
30797981
12
Duodecimal
a392aa5
16
Hexadecimal
1d5f09d
20
Vigesimal
9c9ej1
36
Base36
ic3vh
md5
10db9e90f015e883c3ecbf29384bd50f
sha1
20b310db5da952276a7bbf48d6f08254fe723ae6
sha256
06206e27778e0af30ceb390f0e1e4a3967213623600395a0dd52eb0b7d7a252e
sha512
1100714a84d8209fd9c484c9393a1f2d8b2a4f7c06efd84ceeaaa9e2036a8b461ef249a9b43e7bfd312361225e9d45f7c6c9e0ae07a2029b87794c213bb8f047
ripemd-160
978620934ca7657bf47bbab29004e4dfe7978d8d
Diameter
61595962
Circumference
193509421.71
Area
2.9798497465727E+15
Volume
1.2236447450374E+23
Surface area
1.1919398986291E+16
Circumference
193509421.71
Perimeter
123191924
Area
948515633676361
Diagonal
43554922.423909
Surface area
5691093802058166
Volume
2.9212366464168E+22
Space diagonal
53343667.862541
Perimeter
92393943
Area
4.1071931732521E+14
Altitude
26671833.93127
Surface area
4.1071931732521E+14
Volume
3.4427104035532E+21
Height
14518307.474636