28731330 (number)

28731330 is an even 8-digits composite number following 28731329 and preceding 28731331. In scientific notation, it is written as 2.8731330 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 7661664 positive integers (up to 28731330) that are relatively prime to 28731330.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred thirty-one thousand three hundred thirty

Notation

Scientific notation 2.8731330 × 10^7
Engineering notation 2.8731330 × 10^6

Prime Factorization of 28731330

Prime Factorization 2 × 45 × 319237

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28731330
Product of the distinct prime numbers

The prime factorization of 28731330 is 2 × 45 × 319237. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28731330)

Multiplication

n×y
n×2 57462660
n×3 86193990
n×4 114925320
n×5 143656650

Division

n÷y
n÷2 14365665
n÷3 9577110
n÷3 7182832.5
n÷5 5746266

Exponentiation

ny
n2 825489323568900
n3 2.3717406166935E+22
n4 6.8143262332624E+29
n5 1.9578465573552E+37

Nth Root

y√n
2√n 5360.1613781676
3√n 306.27995653097
4√n 73.213122991494
5√n 31.022096614724

Divisors of 28731330

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 -28731329
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 28731330 can be divided by 8 positive divisors. The sum of these divisors (counting 28731330) is 1, the average is 0.125.

Base conversion 28731330

Base System Value
2 Binary 1101101100110011111000010
3 Ternary 2000001200222100
4 Quaternary 1231212133002
5 Quinary 24323400310
6 Senary 2503451230
8 Octal 155463702
10 Decimal 28731330
12 Duodecimal 9756b16
16 Hexadecimal 1b667c2
20 Vigesimal 8jb86a
36 Base36 h3t8i

Cryptographic Hash Functions

md5 f913478b9ecf7d705ce9ae89dbab1f78
sha1 722ba143f422b74138865b22f29fb1f29bb2ef17
sha256 747e7e2ca4860a75c176a3475504cf899a8dfcb24b15ebcc7920fd90b3fa6504
sha512 93eef8d8bfee2c51ff2a1b4c5099165b539f3ad6f44feea1fe453110c8e5cc49104918cca5fc843b65939098f31a70f09dbe870c3e776a3f28d9aa2f5603a5de
ripemd-160 d3bb6d04e8fbb396d43156e068fbdad4a45983be

28731330 as geometric shapes

Circle

Radius = n
Diameter 57462660
Circumference 180524270.51173
Area 2.5933511945409E+15

Sphere

Radius = n
Volume 9.9347238634997E+22
Surface area 1.0373404778163E+16
Circumference 180524270.51173

Square

Length = n
Perimeter 114925320
Area 825489323568900
Diagonal 40632236.551017

Cube

Length = n
Surface area 4952935941413400
Volume 2.3717406166935E+22
Space diagonal 49764123.329028

Equilateral Triangle

Length = n
Perimeter 86193990
Area 3.5744736238175E+14
Altitude 24882061.664514

Triangular Pyramid

Length = n
Surface area 3.5744736238175E+14
Volume 2.7951231221325E+21
Height 13544078.850339