15540981 is an odd 8-digits composite number following 15540980
and preceding 15540982 . In scientific notation, it is written as 1.5540981 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 10326720 positive integers (up to 15540981) that are relatively prime to 15540981.
15540981 has 8 divisors, whose sum is 20789184
The reverse of 15540981 is 18904551
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
fifteen million five hundred forty thousand nine hundred eighty-one
Scientific notation
1.5540981 × 10^7
Engineering notation
1.5540981 × 10^6
Prime Factorization
3 × 311 × 16657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15540981
Product of the distinct prime numbers
The prime factorization of 15540981 is 3 × 311 × 16657.
Since it has a total of 3 prime factors.
6 , 8 , 8 , 44 , 318 , 731 , 2418 , 3508 , 12284 , 91348 , 580510 , 876521 , 3337241 , 9500013 , 35316258 , 55614899 , 784945139 , 526252206 , 3662958657 , 4145405214
n×2
31081962
n×3
46622943
n×4
62163924
n×5
77704905
n÷2
7770490.5
n÷3
5180327
n÷3
3885245.25
n÷5
3108196.2
n2
241522090442361
n3
3.753490218645E+21
n4
5.8332920171648E+28
n5
9.065508040621E+35
2 √n
3942.2050935993
3 √n
249.55109307944
4 √n
62.786981879999
5 √n
27.43441386171
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
-15540980
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 15540981 can be divided by 8 positive divisors.
The sum of these divisors (counting 15540981) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011010010001011110101
3
Ternary
1002020120012220
4
Quaternary
323102023311
5
Quinary
12434302411
6
Senary
1313032553
8
Octal
73221365
10
Decimal
15540981
12
Duodecimal
5255759
16
Hexadecimal
ed22f5
20
Vigesimal
4h2c91
36
Base36
993hx
md5
8a11224fa0e4e460a199e384b1cfba36
sha1
1edfa72832e4f92d0c5beb00f785c3e895ccf4f9
sha256
703ec8e9521d340e892ea75c7a339457b85e2ab550c8256f18e7facea0e5eb7f
sha512
e8b6416257dd3ae21f342b33e1c50f8d67897aea17c3fbcfc9a0b2e88aff73422b09812b461635b83578ac44aa74b00fbe8fd2d77280f4a84ab11c86dc10dfd6
ripemd-160
ae299f999fe570d3210831c87915ab95b29f41fa
Diameter
31081962
Circumference
97646863.478357
Area
7.5876402501337E+14
Volume
1.5722583061622E+22
Surface area
3.0350561000535E+15
Circumference
97646863.478357
Perimeter
62163924
Area
241522090442361
Diagonal
21978266.102783
Surface area
1449132542654166
Volume
3.753490218645E+21
Space diagonal
26917768.691463
Perimeter
46622943
Area
1.045821329491E+14
Altitude
13458884.345731
Surface area
1.045821329491E+14
Volume
4.4235306445354E+20
Height
7326088.7009275