15661986 (number)

15661986 is an even 8-digits composite number following 15661985 and preceding 15661987. In scientific notation, it is written as 1.5661986 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 5185328 positive integers (up to 15661986) that are relatively prime to 15661986.

Interesting facts

Basic properties

Name

Name fifteen million six hundred sixty-one thousand nine hundred eighty-six

Notation

Scientific notation 1.5661986 × 10^7
Engineering notation 1.5661986 × 10^6

Prime Factorization of 15661986

Prime Factorization 2 × 3 × 149 × 17519

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 15661986
Product of the distinct prime numbers

The prime factorization of 15661986 is 2 × 3 × 149 × 17519. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 2, 100, 18, 401, 44, 5222, 2680, 87853, 89065, 505803, 423806, 5970358, 6199138, 42738858, 59555864, 611694433, 64146800, 8199001206, 9495405383

Basic calculations (n = 15661986)

Multiplication

n×y
n×2 31323972
n×3 46985958
n×4 62647944
n×5 78309930

Division

n÷y
n÷2 7830993
n÷3 5220662
n÷3 3915496.5
n÷5 3132397.2

Exponentiation

ny
n2 245297805464196
n3 3.841850795011E+21
n4 6.0171013365551E+28
n5 9.4239756893707E+35

Nth Root

y√n
2√n 3957.5227099791
3√n 250.1971032271
4√n 62.908844449561
5√n 27.477003324522

Divisors of 15661986

1, 2, 3, 6, 149, 298, 447, 894, 17519, 35038, 52557, 105114, 2610331, 5220662, 7830993, 15661986

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -15661985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15661986 can be divided by 16 positive divisors. The sum of these divisors (counting 15661986) is 1, the average is 0.0625.

Base conversion 15661986

Base System Value
2 Binary 111011101111101110100010
3 Ternary 1002110201012120
4 Quaternary 323233232202
5 Quinary 13002140421
6 Senary 1315405110
8 Octal 73575642
10 Decimal 15661986
12 Duodecimal 52b3796
16 Hexadecimal eefba2
20 Vigesimal 4hhej6
36 Base36 9bov6

Cryptographic Hash Functions

md5 7b4a89ecdeb4a51fe6479029ab1cc560
sha1 2162940ddd3e0d5b94446f4acc2c3b0db8ef6abc
sha256 563d02b279793be214e6c806d11e4e3fdf41a224ae66767659ba718f29617320
sha512 10ca2ff2983fc2c513ac6d9d8f59dda07cc7fe905f1a03c6957ccd1ad0e043ca162e440f39b3537a2064dce0e6e5d3c40c25d3c632ce9e4bc6c4b4eea8d23a42
ripemd-160 eea7ef94b052fd3ffd6f0d4747df8446b12cbebd

15661986 as geometric shapes

Circle

Radius = n
Diameter 31323972
Circumference 98407160.316452
Area 7.7062578358802E+14

Sphere

Radius = n
Volume 1.6092706978393E+22
Surface area 3.0825031343521E+15
Circumference 98407160.316452

Square

Length = n
Perimeter 62647944
Area 245297805464196
Diagonal 22149393.014898

Cube

Length = n
Surface area 1471786832785176
Volume 3.841850795011E+21
Space diagonal 27127355.499432

Equilateral Triangle

Length = n
Perimeter 46985958
Area 1.0621706551228E+14
Altitude 13563677.749716

Triangular Pyramid

Length = n
Surface area 1.0621706551228E+14
Volume 4.527664582432E+20
Height 7383131.0049658