15661997 is an odd 8-digits composite number following 15661996
and preceding 15661998 . In scientific notation, it is written as 1.5661997 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 14391360 positive integers (up to 15661997) that are relatively prime to 15661997.
15661997 has 8 divisors, whose sum is 16943640
The reverse of 15661997 is 79916651
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
fifteen million six hundred sixty-one thousand nine hundred ninety-seven
Scientific notation
1.5661997 × 10^7
Engineering notation
1.5661997 × 10^6
Prime Factorization
13 × 229 × 5261
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15661997
Product of the distinct prime numbers
The prime factorization of 15661997 is 13 × 229 × 5261.
Since it has a total of 3 prime factors.
5 , 2 , 17 , 85 , 768 , 409 , 4258 , 4072 , 72812 , 44275 , 101532 , 847092 , 1508622 , 8366653 , 82477279 , 8014416 , 955946065 , 976708936 , 4899038879 , 7541506044
n×2
31323994
n×3
46985991
n×4
62647988
n×5
78309985
n÷2
7830998.5
n÷3
5220665.6666667
n÷3
3915499.25
n÷5
3132399.4
n2
245298150028009
n3
3.8418588898442E+21
n4
6.0171182407164E+28
n5
9.4240087834745E+35
2 √n
3957.5240997371
3 √n
250.19716180135
4 √n
62.908855495368
5 √n
27.477007184147
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
-15661996
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 15661997 can be divided by 8 positive divisors.
The sum of these divisors (counting 15661997) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011101111101110101101
3
Ternary
1002110201012222
4
Quaternary
323233232231
5
Quinary
13002140442
6
Senary
1315405125
8
Octal
73575655
10
Decimal
15661997
12
Duodecimal
52b37a5
16
Hexadecimal
eefbad
20
Vigesimal
4hhejh
36
Base36
9bovh
md5
b4a094f7afc3b8b3ad3ac7d87d84d6b0
sha1
35c364f7753461be1d164e6333af76b317480f35
sha256
7368a5a259c2b03a7595bb737f7540d7bea1d773adcae041bf5ce8f8d55515dd
sha512
4d58940a7e0e99730e23369c76d2105e60d6f406d690f05976a2e1e0ad952c0fe20873617b2fdbe4f217af72d18f5d25b4474424f4cfd059b8ce881c22c0f92e
ripemd-160
32242463ce53fdfb3fe7ba42ba4279a05ea304c2
Diameter
31323994
Circumference
98407229.431491
Area
7.7062686606716E+14
Volume
1.6092740885951E+22
Surface area
3.0825074642686E+15
Circumference
98407229.431491
Perimeter
62647988
Area
245298150028009
Diagonal
22149408.571247
Surface area
1471788900168054
Volume
3.8418588898442E+21
Space diagonal
27127374.551991
Perimeter
46985991
Area
1.0621721471279E+14
Altitude
13563687.275996
Surface area
1.0621721471279E+14
Volume
4.5276741222845E+20
Height
7383136.1904156