15661820 (number)

15661820 is an even 8-digits composite number following 15661819 and preceding 15661821. In scientific notation, it is written as 1.5661820 × 10^7. The sum of its digits is 29. It has a total of 5 prime factors and 24 positive divisors. There are 6062400 positive integers (up to 15661820) that are relatively prime to 15661820.

Interesting facts

Basic properties

Name

Name fifteen million six hundred sixty-one thousand eight hundred twenty

Notation

Scientific notation 1.5661820 × 10^7
Engineering notation 1.5661820 × 10^6

Prime Factorization of 15661820

Prime Factorization 2 × 2 × 5 × 31 × 25261

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7830910
Product of the distinct prime numbers

The prime factorization of 15661820 is 2 × 2 × 5 × 31 × 25261. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 2, 64, 57, 985, 800, 728, 7618, 26046, 4844, 660796, 376170, 9757781, 3115714, 47169353, 2429578, 405557021, 635685186, 9884356270, 3299323534

Basic calculations (n = 15661820)

Multiplication

n×y
n×2 31323640
n×3 46985460
n×4 62647280
n×5 78309100

Division

n÷y
n÷2 7830910
n÷3 5220606.6666667
n÷3 3915455
n÷5 3132364

Exponentiation

ny
n2 245292605712400
n3 3.8417286379986E+21
n4 6.0168462417179E+28
n5 9.4234762805462E+35

Nth Root

y√n
2√n 3957.5017372075
3√n 250.19621928501
4√n 62.908677757583
5√n 27.476945079011

Divisors of 15661820

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 25261, 50522, 101044, 126305, 252610, 505220, 783091, 1566182, 3132364, 3915455, 7830910, 15661820

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -15661819
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15661820 can be divided by 24 positive divisors. The sum of these divisors (counting 15661820) is 1, the average is 0.041666666666667.

Base conversion 15661820

Base System Value
2 Binary 111011101111101011111100
3 Ternary 1002110200222102
4 Quaternary 323233223330
5 Quinary 13002134240
6 Senary 1315404232
8 Octal 73575374
10 Decimal 15661820
12 Duodecimal 52b3678
16 Hexadecimal eefafc
20 Vigesimal 4hheb0
36 Base36 9boqk

Cryptographic Hash Functions

md5 992fabfd324e12245067f7ab17e630df
sha1 32c95526cf0790b870234cd3819295f9ef39eddc
sha256 06712656216e09ab5b336e4754c0094c2904f4ead8d647af6f6ba20d4f917893
sha512 713065a8b066fe7d50a37c92012bc1f30fd8973414378df89156c27db413bfe3d1fe075d2560fe650aa5d7a8ed974a834778a4f24ee7039ff3e1ed48d5142295
ripemd-160 21097281233d65780e824261026cc4d76c091c71

15661820 as geometric shapes

Circle

Radius = n
Diameter 31323640
Circumference 98406117.307691
Area 7.7060944808597E+14

Sphere

Radius = n
Volume 1.6092195288296E+22
Surface area 3.0824377923439E+15
Circumference 98406117.307691

Square

Length = n
Perimeter 62647280
Area 245292605712400
Diagonal 22149158.255446

Cube

Length = n
Surface area 1471755634274400
Volume 3.8417286379986E+21
Space diagonal 27127067.978998

Equilateral Triangle

Length = n
Perimeter 46985460
Area 1.0621481395371E+14
Altitude 13563533.989499

Triangular Pyramid

Length = n
Surface area 1.0621481395371E+14
Volume 4.5275206190123E+20
Height 7383052.7518154