15561985 (number)

15561985 is an odd 8-digits composite number following 15561984 and preceding 15561986. In scientific notation, it is written as 1.5561985 × 10^7. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 12393840 positive integers (up to 15561985) that are relatively prime to 15561985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.5561985 × 10^7
Engineering notation 1.5561985 × 10^6

Prime Factorization of 15561985

Prime Factorization 5 × 227 × 13711

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 15561985
Product of the distinct prime numbers

The prime factorization of 15561985 is 5 × 227 × 13711. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 15561985)

Multiplication

n×y
n×2 31123970
n×3 46685955
n×4 62247940
n×5 77809925

Division

n÷y
n÷2 7780992.5
n÷3 5187328.3333333
n÷3 3890496.25
n÷5 3112397

Exponentiation

ny
n2 242175377140225
n3 3.7687295864255E+21
n4 5.864891329301E+28
n5 9.1269350893213E+35

Nth Root

y√n
2√n 3944.868185377
3√n 249.66346718593
4√n 62.808185655829
5√n 27.441825506631

Divisors of 15561985

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 -15561984
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 15561985 can be divided by 8 positive divisors. The sum of these divisors (counting 15561985) is 1, the average is 0.125.

Base conversion 15561985

Base System Value
2 Binary 111011010111010100000001
3 Ternary 1002021122000211
4 Quaternary 323113110001
5 Quinary 12440440420
6 Senary 1313314121
8 Octal 73272401
10 Decimal 15561985
12 Duodecimal 5265941
16 Hexadecimal ed7501
20 Vigesimal 4h54j5
36 Base36 99jpd

Cryptographic Hash Functions

md5 672ada578eb0c2e038fd791253dab507
sha1 c862774d2b1c685c442e845a966eca13dca3b676
sha256 2b767ce06832d7ce20267325cd74f76dfef9c1c29f6caff8491481af5fe81e30
sha512 33a722da706fb883875689f32e40bca314004117059509541f507a6ceb216b1beb64e236489560baff0f0b73f1477cded139615ba5489b3337013b3912fa6b76
ripemd-160 199fdf2d92d9609c4fdc53b876dd26df079a8c17

15561985 as geometric shapes

Circle

Radius = n
Diameter 31123970
Circumference 97778835.502549
Area 7.6081638570407E+14

Sphere

Radius = n
Volume 1.5786417576108E+22
Surface area 3.0432655428163E+15
Circumference 97778835.502549

Square

Length = n
Perimeter 62247940
Area 242175377140225
Diagonal 22007970.244447

Cube

Length = n
Surface area 1453052262841350
Volume 3.7687295864255E+21
Space diagonal 26954148.686625

Equilateral Triangle

Length = n
Perimeter 46685955
Area 1.0486501438726E+14
Altitude 13477074.343312

Triangular Pyramid

Length = n
Surface area 1.0486501438726E+14
Volume 4.4414904116998E+20
Height 7335990.0814822