12728985 (number)

12728985 is an odd 8-digits composite number following 12728984 and preceding 12728986. In scientific notation, it is written as 1.2728985 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 6788784 positive integers (up to 12728985) that are relatively prime to 12728985.

Interesting facts

Basic properties

Name

Name twelve million seven hundred twenty-eight thousand nine hundred eighty-five

Notation

Scientific notation 1.2728985 × 10^7
Engineering notation 1.2728985 × 10^6

Prime Factorization of 12728985

Prime Factorization 3 × 5 × 848599

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 12728985
Product of the distinct prime numbers

The prime factorization of 12728985 is 3 × 5 × 848599. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12728985)

Multiplication

n×y
n×2 25457970
n×3 38186955
n×4 50915940
n×5 63644925

Division

n÷y
n÷2 6364492.5
n÷3 4242995
n÷3 3182246.25
n÷5 2545797

Exponentiation

ny
n2 162027059130225
n3 2.0624400052627E+21
n4 2.6252767890389E+28
n5 3.3417108868525E+35

Nth Root

y√n
2√n 3567.7703121137
3√n 233.48801421663
4√n 59.730815431515
5√n 26.360810246462

Divisors of 12728985

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 -12728984
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 12728985 can be divided by 8 positive divisors. The sum of these divisors (counting 12728985) is 1, the average is 0.125.

Base conversion 12728985

Base System Value
2 Binary 110000100011101010011001
3 Ternary 212221200212220
4 Quaternary 300203222121
5 Quinary 11224311420
6 Senary 1132454253
8 Octal 60435231
10 Decimal 12728985
12 Duodecimal 431a389
16 Hexadecimal c23a99
20 Vigesimal 3jb295
36 Base36 7ktqx

Cryptographic Hash Functions

md5 dadc40be30d404333509ded0b033cca5
sha1 f65f051aee0194bcd5a44038f2139d7d4c687226
sha256 94038a26f7b7cf8778c94fc7d0f2aa5bbc9926dda0d4cd7111ba3e38ea7bfb0b
sha512 e883fb407db2424e10d372bdd7b52a41a8675f11fdb66ccc1d64b18af074803305a0a208ffcb60ce2921d0e8c19c6f1f2f48726ece17e0f614c1ae60ac55755a
ripemd-160 9bcf25cba6152f5a2a4eee700f931abf19692426

12728985 as geometric shapes

Circle

Radius = n
Diameter 25457970
Circumference 79978571.527309
Area 5.0902301864627E+14

Sphere

Radius = n
Volume 8.6391284920042E+21
Surface area 2.0360920745851E+15
Circumference 79978571.527309

Square

Length = n
Perimeter 50915940
Area 162027059130225
Diagonal 18001503.222244

Cube

Length = n
Surface area 972162354781350
Volume 2.0624400052627E+21
Space diagonal 22047248.748782

Equilateral Triangle

Length = n
Perimeter 38186955
Area 70159774653629
Altitude 11023624.374391

Triangular Pyramid

Length = n
Surface area 70159774653629
Volume 2.4306088558528E+20
Height 6000501.0740812