15940981 is an odd 8-digits composite number following 15940980
and preceding 15940982 . In scientific notation, it is written as 1.5940981 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 12495168 positive integers (up to 15940981) that are relatively prime to 15940981.
15940981 has 16 divisors, whose sum is 19843200
The reverse of 15940981 is 18904951
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
fifteen million nine hundred forty thousand nine hundred eighty-one
Scientific notation
1.5940981 × 10^7
Engineering notation
1.5940981 × 10^6
Prime Factorization
19 × 29 × 7 × 4133
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
15940981
Product of the distinct prime numbers
The prime factorization of 15940981 is 19 × 29 × 7 × 4133.
Since it has a total of 4 prime factors.
2 , 2 , 76 , 90 , 287 , 886 , 9732 , 8957 , 66625 , 1444 , 821745 , 394890 , 5338187 , 6208565 , 75876479 , 74582057 , 297421224 , 625031035 , 5114012601 , 2656154953
n×2
31881962
n×3
47822943
n×4
63763924
n×5
79704905
n÷2
7970490.5
n÷3
5313660.3333333
n÷3
3985245.25
n÷5
3188196.2
n2
254114875242361
n3
4.0508403980558E+21
n4
6.4574369819441E+28
n5
1.0293788023787E+36
2 √n
3992.6158092158
3 √n
251.67399790542
4 √n
63.18714908283
5 √n
27.574205559271
1 , 7 , 19 , 29 , 133 , 203 , 551 , 3857 , 4133 , 28931 , 78527 , 119857 , 549689 , 838999 , 2277283 , 15940981
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
-15940980
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 15940981 can be divided by 16 positive divisors.
The sum of these divisors (counting 15940981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100110011110101110101
3
Ternary
1002222212220201
4
Quaternary
330303311311
5
Quinary
13040102411
6
Senary
1325400501
8
Octal
74636565
10
Decimal
15940981
12
Duodecimal
5409131
16
Hexadecimal
f33d75
20
Vigesimal
4jcc91
36
Base36
9ho51
md5
bcd3e69cd2c250f7e5bf9af20728d9b5
sha1
a141cf5a821761d4f1d88f3408f2e08883ec21b1
sha256
1f92768e25a697adace4568f7ba04369f66f5c5cee57763900c83ba11c0f7959
sha512
8333abb54117d6e30780ebb4d651bb70caf15d81bdac90e4813e230eb42d18aebaf526cfe76eaaa8f7508f96fe4c0f0f7e072543868a91691477ec4f577aeb8d
ripemd-160
a3b70013a6c0fa7e4a24645f6bd281fbe96a4aa6
Diameter
31881962
Circumference
100160137.60123
Area
7.9832542522929E+14
Volume
1.6968120580529E+22
Surface area
3.1933017009172E+15
Circumference
100160137.60123
Perimeter
63763924
Area
254114875242361
Diagonal
22543951.527732
Surface area
1524689251454166
Volume
4.0508403980558E+21
Space diagonal
27610589.01449
Perimeter
47822943
Area
1.100349687197E+14
Altitude
13805294.507245
Surface area
1.100349687197E+14
Volume
4.7739611916162E+20
Height
7514650.5092439