15661409 (number)

15661409 is an odd 8-digits composite number following 15661408 and preceding 15661410. In scientific notation, it is written as 1.5661409 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 15631920 positive integers (up to 15661409) that are relatively prime to 15661409.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.5661409 × 10^7
Engineering notation 1.5661409 × 10^6

Prime Factorization of 15661409

Prime Factorization 541 × 28949

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 15661409
Product of the distinct prime numbers

The prime factorization of 15661409 is 541 × 28949. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 15661409)

Multiplication

n×y
n×2 31322818
n×3 46984227
n×4 62645636
n×5 78307045

Division

n÷y
n÷2 7830704.5
n÷3 5220469.6666667
n÷3 3915352.25
n÷5 3132281.8

Exponentiation

ny
n2 245279731865281
n3 3.8414262001525E+21
n4 6.0162146863904E+28
n5 9.4222398835367E+35

Nth Root

y√n
2√n 3957.4498101682
3√n 250.19403070272
4√n 62.908265038611
5√n 27.476800866615

Divisors of 15661409

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 -15661408
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 15661409 can be divided by 4 positive divisors. The sum of these divisors (counting 15661409) is 1, the average is 0.25.

Base conversion 15661409

Base System Value
2 Binary 111011101111100101100001
3 Ternary 1002110200102012
4 Quaternary 323233211201
5 Quinary 13002131114
6 Senary 1315402305
8 Octal 73574541
10 Decimal 15661409
12 Duodecimal 52b3395
16 Hexadecimal eef961
20 Vigesimal 4hhda9
36 Base36 9bof5

Cryptographic Hash Functions

md5 44d9bd09542df495bb7be71efecb7f14
sha1 80b1b5d262c4fbb2697aecc46e35370af019ba09
sha256 7f95dbefb300836b7a73834cec34329c3f91e134b316b0b6d7c10331abef9e6d
sha512 23c22da25c24e12c35cf22dc3d57a7ac82b3993bdfd3b6bd5f9600181970622b9d9ce7745fa4d1a3439baa1fb40169905b1d6e786429ff4d06a47c0f1b9208c2
ripemd-160 a359ed176eb42e1992a9fb4c6556149813cc128e

15661409 as geometric shapes

Circle

Radius = n
Diameter 31322818
Circumference 98403534.91853
Area 7.7056900370244E+14

Sphere

Radius = n
Volume 1.6090928439609E+22
Surface area 3.0822760148098E+15
Circumference 98403534.91853

Square

Length = n
Perimeter 62645636
Area 245279731865281
Diagonal 22148577.013672

Cube

Length = n
Surface area 1471678391191686
Volume 3.8414262001525E+21
Space diagonal 27126356.106116

Equilateral Triangle

Length = n
Perimeter 46984227
Area 1.0620923941438E+14
Altitude 13563178.053058

Triangular Pyramid

Length = n
Surface area 1.0620923941438E+14
Volume 4.5271641925925E+20
Height 7382859.0045574