28960981 (number)

28960981 is an odd 8-digits composite number following 28960980 and preceding 28960982. In scientific notation, it is written as 2.8960981 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 24656208 positive integers (up to 28960981) that are relatively prime to 28960981.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred sixty thousand nine hundred eighty-one

Notation

Scientific notation 2.8960981 × 10^7
Engineering notation 2.8960981 × 10^6

Prime Factorization of 28960981

Prime Factorization 7 × 149 × 27767

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28960981
Product of the distinct prime numbers

The prime factorization of 28960981 is 7 × 149 × 27767. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28960981)

Multiplication

n×y
n×2 57921962
n×3 86882943
n×4 115843924
n×5 144804905

Division

n÷y
n÷2 14480490.5
n÷3 9653660.3333333
n÷3 7240245.25
n÷5 5792196.2

Exponentiation

ny
n2 838738420482361
n3 2.429068745956E+22
n4 7.0348213799325E+29
n5 2.0373532832262E+37

Nth Root

y√n
2√n 5381.5407645023
3√n 307.09382907966
4√n 73.358985574381
5√n 31.071531056668

Divisors of 28960981

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 -28960980
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 28960981 can be divided by 8 positive divisors. The sum of these divisors (counting 28960981) is 1, the average is 0.125.

Base conversion 28960981

Base System Value
2 Binary 1101110011110100011010101
3 Ternary 2000111100222221
4 Quaternary 1232132203111
5 Quinary 24403222411
6 Senary 2512422341
8 Octal 156364325
10 Decimal 28960981
12 Duodecimal 98479b1
16 Hexadecimal 1b9e8d5
20 Vigesimal 910291
36 Base36 h8qfp

Cryptographic Hash Functions

md5 9d6cb35f9cb6a847e100d308b7f3c7da
sha1 94304bfdafc6865d19346c5c26c97cacedd6728d
sha256 aaecac94a67575a550c34a03bdcf8937b45ef70c1b22723b05eeff0c9ac79a9f
sha512 643057c4a4986cbdf668eec86551223961e358f6bedceca1e26b8aa330ce168201ca2b7a37ebf2f685a0eb15ff54b2086d2e3cf4d7c91889c037eded9798f49d
ripemd-160 95c0899dc418bad04f9b3da0e3842e613a211973

28960981 as geometric shapes

Circle

Radius = n
Diameter 57921962
Circumference 181967210.30071
Area 2.6349744600709E+15

Sphere

Radius = n
Volume 1.0174859369813E+23
Surface area 1.0539897840284E+16
Circumference 181967210.30071

Square

Length = n
Perimeter 115843924
Area 838738420482361
Diagonal 40957012.10983

Cube

Length = n
Surface area 5032430522894166
Volume 2.429068745956E+22
Space diagonal 50161890.529037

Equilateral Triangle

Length = n
Perimeter 86882943
Area 3.6318438963388E+14
Altitude 25080945.264518

Triangular Pyramid

Length = n
Surface area 3.6318438963388E+14
Volume 2.8626849703896E+21
Height 13652337.369943