15666421 is an odd 8-digits composite number following 15666420
and preceding 15666422 . In scientific notation, it is written as 1.5666421 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 15546700 positive integers (up to 15666421) that are relatively prime to 15666421.
15666421 has 4 divisors, whose sum is 15786144
The reverse of 15666421 is 12466651
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
fifteen million six hundred sixty-six thousand four hundred twenty-one
Scientific notation
1.5666421 × 10^7
Engineering notation
1.5666421 × 10^6
Prime Factorization
131 × 119591
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15666421
Product of the distinct prime numbers
The prime factorization of 15666421 is 131 × 119591.
Since it has a total of 2 prime factors.
2 , 1 , 49 , 14 , 638 , 819 , 9390 , 5539 , 69721 , 80211 , 222949 , 116003 , 9379938 , 9574342 , 65002647 , 63822354 , 337965044 , 736160645 , 5445274153 , 4874594411
n×2
31332842
n×3
46999263
n×4
62665684
n×5
78332105
n÷2
7833210.5
n÷3
5222140.3333333
n÷3
3916605.25
n÷5
3133284.2
n2
245436746949241
n3
3.8451154065773E+21
n4
6.0239196753026E+28
n5
9.4373261703473E+35
2 √n
3958.0829955927
3 √n
250.22071707854
4 √n
62.913297446507
5 √n
27.478559279293
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
-15666420
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 15666421 can be divided by 4 positive divisors.
The sum of these divisors (counting 15666421) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011110000110011110101
3
Ternary
1002110221021211
4
Quaternary
323300303311
5
Quinary
13002311141
6
Senary
1315441421
8
Octal
73606365
10
Decimal
15666421
12
Duodecimal
52b6271
16
Hexadecimal
ef0cf5
20
Vigesimal
4hi611
36
Base36
9bsad
md5
ea65600d4186df6fc8701c0b84f64a8b
sha1
037c1834427f344c412d9ac1d5cfa57c94622353
sha256
cdf362cb9d0b3ec6b36d0c0cd493a84756601dd5c90bfb52808b17dc02221d98
sha512
288ae5b5bbd4c1512f4d35935c1bf29836afee459ddf1c6e6bfd30bc5f48f30c9027294d49e91be8b877e7ac8671b377053f409e88a27df2f6cb3e332a3a6fed
ripemd-160
313dccd33f8c4313a203d8636f16c11aaa33c849
Diameter
31332842
Circumference
98435026.24329
Area
7.7106228113671E+14
Volume
1.6106381751344E+22
Surface area
3.0842491245469E+15
Circumference
98435026.24329
Perimeter
62665684
Area
245436746949241
Diagonal
22155665.052047
Surface area
1472620481695446
Volume
3.8451154065773E+21
Space diagonal
27135037.144764
Perimeter
46999263
Area
1.0627722894013E+14
Altitude
13567518.572382
Surface area
1.0627722894013E+14
Volume
4.5315119640594E+20
Height
7385221.6840156