15661994 is an even 8-digits composite number following 15661993
and preceding 15661995 . In scientific notation, it is written as 1.5661994 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 7702560 positive integers (up to 15661994) that are relatively prime to 15661994.
15661994 has 8 divisors, whose sum is 23878308
The reverse of 15661994 is 49916651
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
fifteen million six hundred sixty-one thousand nine hundred ninety-four
Scientific notation
1.5661994 × 10^7
Engineering notation
1.5661994 × 10^6
Prime Factorization
2 × 61 × 128377
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15661994
Product of the distinct prime numbers
The prime factorization of 15661994 is 2 × 61 × 128377.
Since it has a total of 3 prime factors.
1 , 10 , 75 , 12 , 500 , 245 , 5946 , 5000 , 74909 , 69268 , 775315 , 113993 , 3425 , 8156110 , 25374395 , 32431600 , 907160210 , 636859147 , 1042034887 , 1646039194
n×2
31323988
n×3
46985982
n×4
62647976
n×5
78309970
n÷2
7830997
n÷3
5220664.6666667
n÷3
3915498.5
n÷5
3132398.8
n2
245298056056036
n3
3.8418566821613E+21
n4
6.017113630487E+28
n5
9.4239997578006E+35
2 √n
3957.5237207122
3 √n
250.19714582656
4 √n
62.908852482876
5 √n
27.477006131522
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
-15661993
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 15661994 can be divided by 8 positive divisors.
The sum of these divisors (counting 15661994) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011101111101110101010
3
Ternary
1002110201012212
4
Quaternary
323233232222
5
Quinary
13002140434
6
Senary
1315405122
8
Octal
73575652
10
Decimal
15661994
12
Duodecimal
52b37a2
16
Hexadecimal
eefbaa
20
Vigesimal
4hheje
36
Base36
9bove
md5
377f32b851e2f9ba15008cd8ac98faf8
sha1
0e0cd9efee8def3d543c43b36b36299390ca468a
sha256
31b0c35ab4567dba706d2efac754b84fcc70db80b0ff3b4325fedbbb53315e91
sha512
090051367ebfd095e5370b4f36013580f1cd25a922088e7acec737d3cbce4bb2ade4d99dcbb86e2efb4038938883e6b0e239ab414bcb8f20104659f1f2465756
ripemd-160
e0af901aff7b2bb48f3e0da2f0bfa7e254f1dfbe
Diameter
31323988
Circumference
98407210.581935
Area
7.706265708455E+14
Volume
1.609273163843E+22
Surface area
3.082506283382E+15
Circumference
98407210.581935
Perimeter
62647976
Area
245298056056036
Diagonal
22149404.328606
Surface area
1471788336336216
Volume
3.8418566821613E+21
Space diagonal
27127369.355839
Perimeter
46985982
Area
1.0621717402173E+14
Altitude
13563684.677919
Surface area
1.0621717402173E+14
Volume
4.5276715205052E+20
Height
7383134.776202