30881982 is an even 8-digits composite number following 30881981
and preceding 30881983 . In scientific notation, it is written as 3.0881982 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 10125120 positive integers (up to 30881982) that are relatively prime to 30881982.
30881982 has 16 divisors, whose sum is 62777232
The reverse of 30881982 is 28918803
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
thirty million eight hundred eighty-one thousand nine hundred eighty-two
Scientific notation
3.0881982 × 10^7
Engineering notation
3.0881982 × 10^6
Prime Factorization
2 × 3 × 61 × 84377
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
30881982
Product of the distinct prime numbers
The prime factorization of 30881982 is 2 × 3 × 61 × 84377.
Since it has a total of 4 prime factors.
5 , 7 , 68 , 55 , 40 , 719 , 239 , 729 , 69003 , 24480 , 359559 , 905959 , 4666241 , 5623274 , 73724109 , 61849761 , 589917153 , 42404804 , 9565674068 , 1728577942
n×2
61763964
n×3
92645946
n×4
123527928
n×5
154409910
n÷2
15440991
n÷3
10293994
n÷3
7720495.5
n÷5
6176396.4
n2
953696812248324
n3
2.945204778931E+22
n4
9.0953760969261E+29
n5
2.808832409085E+37
2 √n
5557.1559272707
3 √n
313.73891369958
4 √n
74.546334096793
5 √n
31.473209534786
1 , 2 , 3 , 6 , 61 , 122 , 183 , 366 , 84377 , 168754 , 253131 , 506262 , 5146997 , 10293994 , 15440991 , 30881982
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30881981
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30881982 can be divided by 16 positive divisors.
The sum of these divisors (counting 30881982) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110101110011100010111110
3
Ternary
2011002222010010
4
Quaternary
1311303202332
5
Quinary
30401210412
6
Senary
3021524050
8
Octal
165634276
10
Decimal
30881982
12
Duodecimal
a413626
16
Hexadecimal
1d738be
20
Vigesimal
9d04j2
36
Base36
idwou
md5
4e250cad0d3b0176ca1cdfd91901f7bf
sha1
b98057a005f0afb045578e30cb6c3a985f2a605d
sha256
b9b9e084f9f092140e0906cc24552df82ebf8184c000c06d66ba3ab6335657cb
sha512
c97636772048698097b5378288351f1de5637ce9e19598b9a1f532bc6712690f5f9036828b92454cf173a71b09f012eb375b858c28962a7010b9dde0043c6ab9
ripemd-160
f401e6ffdfd7da59905a0a1283305699906e3482
Diameter
61763964
Circumference
194037215.55898
Area
2.9961268991113E+15
Volume
1.2336844929076E+23
Surface area
1.1984507596445E+16
Circumference
194037215.55898
Perimeter
123527928
Area
953696812248324
Diagonal
43673717.777362
Surface area
5722180873489944
Volume
2.945204778931E+22
Space diagonal
53489161.862428
Perimeter
92645946
Area
4.1296283345764E+14
Altitude
26744580.931214
Surface area
4.1296283345764E+14
Volume
3.4709571186086E+21
Height
14557905.925787