28931920 (number)

28931920 is an even 8-digits composite number following 28931919 and preceding 28931921. In scientific notation, it is written as 2.8931920 × 10^7. The sum of its digits is 34. It has a total of 6 prime factors and 20 positive divisors. There are 11572736 positive integers (up to 28931920) that are relatively prime to 28931920.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931920 × 10^7
Engineering notation 2.8931920 × 10^6

Prime Factorization of 28931920

Prime Factorization 2 × 2 × 2 × 2 × 5 × 361649

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 3616490
Product of the distinct prime numbers

The prime factorization of 28931920 is 2 × 2 × 2 × 2 × 5 × 361649. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 9, 55, 22, 371, 184, 1474, 1149, 33331, 83579, 764442, 416940, 708844, 7528241, 34994001, 65638830, 512478963, 766032145, 995883101, 9565011272

Basic calculations (n = 28931920)

Multiplication

n×y
n×2 57863840
n×3 86795760
n×4 115727680
n×5 144659600

Division

n÷y
n÷2 14465960
n÷3 9643973.3333333
n÷3 7232980
n÷5 5786384

Exponentiation

ny
n2 837055994886400
n3 2.4217637079574E+22
n4 7.0066273857526E+29
n5 2.027151829944E+37

Nth Root

y√n
2√n 5378.8400236482
3√n 306.99107656903
4√n 73.340575561201
5√n 31.065292784437

Divisors of 28931920

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 361649, 723298, 1446596, 1808245, 2893192, 3616490, 5786384, 7232980, 14465960, 28931920

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931920 can be divided by 20 positive divisors. The sum of these divisors (counting 28931920) is 1, the average is 0.05.

Base conversion 28931920

Base System Value
2 Binary 1101110010111011101010000
3 Ternary 2000102220010121
4 Quaternary 1232113131100
5 Quinary 24401310140
6 Senary 2512040024
8 Octal 156273520
10 Decimal 28931920
12 Duodecimal 9833014
16 Hexadecimal 1b97750
20 Vigesimal 90g9g0
36 Base36 h840g

Cryptographic Hash Functions

md5 9165cc535974264b617ca2c3f7eedbcf
sha1 a1519530c971f610aa22c9d7202db312d9cc1c8e
sha256 d6ea1faba5ee9250433eea3e36d5db2f4a40db05e88345cb71baf1d5daea5bc5
sha512 4693486a59a98a739c72a66730b8a266b3be25fa81698fc81a9cec8f2b768baa1ee75ad184954f293673bada63731a58113040dbd86d1191fe2c0362319e2763
ripemd-160 a7933b6a19efc1da939ae72ef2efdfc73db8920d

28931920 as geometric shapes

Circle

Radius = n
Diameter 57863840
Circumference 181784614.6525
Area 2.6296889641784E+15

Sphere

Radius = n
Volume 1.0144260098199E+23
Surface area 1.0518755856714E+16
Circumference 181784614.6525

Square

Length = n
Perimeter 115727680
Area 837055994886400
Diagonal 40915913.649493

Cube

Length = n
Surface area 5022335969318400
Volume 2.4217637079574E+22
Space diagonal 50111555.400518

Equilateral Triangle

Length = n
Perimeter 86795760
Area 3.6245587798084E+14
Altitude 25055777.700259

Triangular Pyramid

Length = n
Surface area 3.6245587798084E+14
Volume 2.8540759005469E+21
Height 13638637.883164