28931520 (number)

28931520 is an even 8-digits composite number following 28931519 and preceding 28931521. In scientific notation, it is written as 2.8931520 × 10^7. The sum of its digits is 30. It has a total of 8 prime factors and 28 positive divisors. There are 7714816 positive integers (up to 28931520) that are relatively prime to 28931520.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand five hundred twenty

Notation

Scientific notation 2.8931520 × 10^7
Engineering notation 2.8931520 × 10^6

Prime Factorization of 28931520

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 15 × 30137

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 904110
Product of the distinct prime numbers

The prime factorization of 28931520 is 2 × 2 × 2 × 2 × 2 × 2 × 15 × 30137. Since it has a total of 8 prime factors.

Most popular turbo-numbers

1, 3, 87, 93, 669, 324, 4338, 8415, 61521, 25257, 143023, 113788, 8959188, 9930241, 63589933, 15066405, 419329530, 904550430, 598420987, 8725745855

Basic calculations (n = 28931520)

Multiplication

n×y
n×2 57863040
n×3 86794560
n×4 115726080
n×5 144657600

Division

n÷y
n÷2 14465760
n÷3 9643840
n÷3 7232880
n÷5 5786304

Exponentiation

ny
n2 837032849510400
n3 2.4216632626267E+22
n4 7.006239911595E+29
n5 2.0270117012711E+37

Nth Root

y√n
2√n 5378.8028407816
3√n 306.98966178798
4√n 73.340322066252
5√n 31.065206884947

Divisors of 28931520

1, 2, 4, 8, 15, 16, 30, 32, 60, 64, 120, 240, 480, 960, 30137, 60274, 120548, 241096, 452055, 482192, 904110, 964384, 1808220, 1928768, 3616440, 7232880, 14465760, 28931520

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931519
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931520 can be divided by 28 positive divisors. The sum of these divisors (counting 28931520) is 1, the average is 0.035714285714286.

Base conversion 28931520

Base System Value
2 Binary 1101110010111010111000000
3 Ternary 2000102212120210
4 Quaternary 1232113113000
5 Quinary 24401302040
6 Senary 2512034120
8 Octal 156272700
10 Decimal 28931520
12 Duodecimal 9832940
16 Hexadecimal 1b975c0
20 Vigesimal 90g8g0
36 Base36 h83pc

Cryptographic Hash Functions

md5 b289936805038d2963707a42dfc32e23
sha1 f387717f00a3b454daa7231892716c39de45db7e
sha256 0532867635c1ede82c1bb4b1f4bc20d9712885c4977643948d22207f29fdd119
sha512 6307d311a30ddb10d51a3c59622e35b3f06efecd4d32c198da6a581390883875327d5092d1f0c620f9714c1adec07b07fd1339ee52eb129a9f7717cef38c2dea
ripemd-160 5ba5cc0f8e7957c738c58d5bb273a8f25e516874

28931520 as geometric shapes

Circle

Radius = n
Diameter 57863040
Circumference 181782101.37837
Area 2.6296162508352E+15

Sphere

Radius = n
Volume 1.0143839353782E+23
Surface area 1.0518465003341E+16
Circumference 181782101.37837

Square

Length = n
Perimeter 115726080
Area 837032849510400
Diagonal 40915347.964068

Cube

Length = n
Surface area 5022197097062400
Volume 2.4216632626267E+22
Space diagonal 50110862.580195

Equilateral Triangle

Length = n
Perimeter 86794560
Area 3.6244585573904E+14
Altitude 25055431.290098

Triangular Pyramid

Length = n
Surface area 3.6244585573904E+14
Volume 2.8539575245895E+21
Height 13638449.321356