28931745 (number)

28931745 is an odd 8-digits composite number following 28931744 and preceding 28931746. In scientific notation, it is written as 2.8931745 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 15385920 positive integers (up to 28931745) that are relatively prime to 28931745.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931745 × 10^7
Engineering notation 2.8931745 × 10^6

Prime Factorization of 28931745

Prime Factorization 15 × 373 × 5171

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28931745
Product of the distinct prime numbers

The prime factorization of 28931745 is 15 × 373 × 5171. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 9, 91, 40, 444, 32, 7346, 8984, 86115, 44303, 531608, 984863, 6115637, 951900, 24241071, 39468797, 275058032, 463654722, 9094926949, 5170740706

Basic calculations (n = 28931745)

Multiplication

n×y
n×2 57863490
n×3 86795235
n×4 115726980
n×5 144658725

Division

n÷y
n÷2 14465872.5
n÷3 9643915
n÷3 7232936.25
n÷5 5786349

Exponentiation

ny
n2 837045868745025
n3 2.4217197627835E+22
n4 7.0064578638311E+29
n5 2.0270905226961E+37

Nth Root

y√n
2√n 5378.8237561757
3√n 306.99045760393
4√n 73.340464657484
5√n 31.065255203527

Divisors of 28931745

1, 15, 373, 5171, 5595, 77565, 1928783, 28931745

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 -28931744
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 28931745 can be divided by 8 positive divisors. The sum of these divisors (counting 28931745) is 1, the average is 0.125.

Base conversion 28931745

Base System Value
2 Binary 1101110010111011010100001
3 Ternary 2000102212220010
4 Quaternary 1232113122201
5 Quinary 24401303440
6 Senary 2512035133
8 Octal 156273241
10 Decimal 28931745
12 Duodecimal 9832aa9
16 Hexadecimal 1b976a1
20 Vigesimal 90g975
36 Base36 h83vl

Cryptographic Hash Functions

md5 dd89047236d347ff5913411a26deb31e
sha1 e73b89f4f1d482d7101b3110bf8462a2846356d1
sha256 98d2c830a7f460f584d8c6084e6bc8fcc8761b812e080c18ee1e555cb16e737a
sha512 edb44a4944f3b2509080506fd1d5d9467c6a113a061422c54e5e733506cef85090474923e7ad1f94a8bba3eeff9e21fda5ffa626182918fa0891441194a2fe27
ripemd-160 18b72e60b1c4e551f3575b5699ffcc298d368818

28931745 as geometric shapes

Circle

Radius = n
Diameter 57863490
Circumference 181783515.09507
Area 2.6296571519671E+15

Sphere

Radius = n
Volume 1.0144076021085E+23
Surface area 1.0518628607868E+16
Circumference 181783515.09507

Square

Length = n
Perimeter 115726980
Area 837045868745025
Diagonal 40915666.16212

Cube

Length = n
Surface area 5022275212470150
Volume 2.4217197627835E+22
Space diagonal 50111252.291627

Equilateral Triangle

Length = n
Perimeter 86795235
Area 3.62451493233E+14
Altitude 25055626.145813

Triangular Pyramid

Length = n
Surface area 3.62451493233E+14
Volume 2.8540241106628E+21
Height 13638555.387373