15690981 is an odd 8-digits composite number following 15690980
and preceding 15690982 . In scientific notation, it is written as 1.5690981 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 10460652 positive integers (up to 15690981) that are relatively prime to 15690981.
15690981 has 4 divisors, whose sum is 20921312
The reverse of 15690981 is 18909651
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
fifteen million six hundred ninety thousand nine hundred eighty-one
Scientific notation
1.5690981 × 10^7
Engineering notation
1.5690981 × 10^6
Prime Factorization
3 × 5230327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15690981
Product of the distinct prime numbers
The prime factorization of 15690981 is 3 × 5230327.
Since it has a total of 2 prime factors.
5 , 1 , 36 , 80 , 46 , 973 , 4834 , 7265 , 77358 , 93516 , 692358 , 746943 , 4029728 , 5940691 , 73536169 , 92849812 , 678027649 , 13528318 , 2331461550 , 2009579894
n×2
31381962
n×3
47072943
n×4
62763924
n×5
78454905
n÷2
7845490.5
n÷3
5230327
n÷3
3922745.25
n÷5
3138196.2
n2
246206884742361
n3
3.8632275505616E+21
n4
6.0617830094538E+28
n5
9.5115322027463E+35
2 √n
3961.1842926075
3 √n
250.35140449476
4 √n
62.937940009246
5 √n
27.487169422199
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
-15690980
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 15690981 can be divided by 4 positive divisors.
The sum of these divisors (counting 15690981) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011110110110011100101
3
Ternary
1002112011222110
4
Quaternary
323312303211
5
Quinary
13004102411
6
Senary
1320151233
8
Octal
73666345
10
Decimal
15690981
12
Duodecimal
5308519
16
Hexadecimal
ef6ce5
20
Vigesimal
4i1791
36
Base36
9cb8l
md5
d9f41abc52fe5b208673d9c40ae70db8
sha1
74209e79b72c608726e0c439200a29478dd32981
sha256
fade5a6087a5408ca08f1c65c77748d1122eb0fe776748eed3fd7868867b933b
sha512
b10518b62c289d2d9aa15da4065564c621fa496a01dd0efa01b525490028a3901a230aa22285ca88a6bfe4cfa1a5c44bda4643ba095543113fc45654ebaa06d7
ripemd-160
5a5c1adc3596556987fddb44086985f3f2144ae6
Diameter
31381962
Circumference
98589341.274434
Area
7.7348174036983E+14
Volume
1.6182249722653E+22
Surface area
3.0939269614793E+15
Circumference
98589341.274434
Perimeter
62763924
Area
246206884742361
Diagonal
22190398.137139
Surface area
1477241308454166
Volume
3.8632275505616E+21
Space diagonal
27177576.312598
Perimeter
47072943
Area
1.0661070838676E+14
Altitude
13588788.156299
Surface area
1.0661070838676E+14
Volume
4.552857330448E+20
Height
7396799.3790462