28439745 (number)

28439745 is an odd 8-digits composite number following 28439744 and preceding 28439746. In scientific notation, it is written as 2.8439745 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 15047424 positive integers (up to 28439745) that are relatively prime to 28439745.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8439745 × 10^7
Engineering notation 2.8439745 × 10^6

Prime Factorization of 28439745

Prime Factorization 15 × 127 × 14929

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28439745
Product of the distinct prime numbers

The prime factorization of 28439745 is 15 × 127 × 14929. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 85, 47, 570, 803, 2377, 7542, 20637, 19430, 230629, 14971, 281462, 721839, 71882384, 80390416, 731326791, 190682384, 1138911935, 3610219675

Basic calculations (n = 28439745)

Multiplication

n×y
n×2 56879490
n×3 85319235
n×4 113758980
n×5 142198725

Division

n÷y
n÷2 14219872.5
n÷3 9479915
n÷3 7109936.25
n÷5 5687949

Exponentiation

ny
n2 808819095665025
n3 2.3002608831844E+22
n4 6.5418832951239E+29
n5 1.8604949273308E+37

Nth Root

y√n
2√n 5332.8927422179
3√n 305.24031941857
4√n 73.026657750563
5√n 30.958872785539

Divisors of 28439745

1, 15, 127, 1905, 14929, 223935, 1895983, 28439745

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 -28439744
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 28439745 can be divided by 8 positive divisors. The sum of these divisors (counting 28439745) is 1, the average is 0.125.

Base conversion 28439745

Base System Value
2 Binary 1101100011111010011000001
3 Ternary 1222111212222220
4 Quaternary 1230133103001
5 Quinary 24240032440
6 Senary 2453321253
8 Octal 154372301
10 Decimal 28439745
12 Duodecimal 9636229
16 Hexadecimal 1b1f4c1
20 Vigesimal 8hej75
36 Base36 gxk8x

Cryptographic Hash Functions

md5 ade82d09974bbcede84ee3ad92d71a14
sha1 37b99aad19f971d7175344a861ccfa38a2d590bb
sha256 1b18d6e0e8a11ff341cb9a542c4e4d7d1e1b6bccd6137e1ffc6e0832498a4d44
sha512 6951703f5a3aad09bf74a67dcbacbdc9cdf1733fa45125f06e579071babe1902cb859424859e52a16b45ad385892c04b8cb914d8bfc1780a4d1288c19c1dec7c
ripemd-160 2e3ec9103fc066a787e13ecb9880fca2142bb42b

28439745 as geometric shapes

Circle

Radius = n
Diameter 56879490
Circumference 178692187.92393
Area 2.5409801290244E+15

Sphere

Radius = n
Volume 9.6353102559361E+22
Surface area 1.0163920516098E+16
Circumference 178692187.92393

Square

Length = n
Perimeter 113758980
Area 808819095665025
Diagonal 40219873.089432

Cube

Length = n
Surface area 4852914573990150
Volume 2.3002608831844E+22
Space diagonal 49259083.294303

Equilateral Triangle

Length = n
Perimeter 85319235
Area 3.5022894195593E+14
Altitude 24629541.647151

Triangular Pyramid

Length = n
Surface area 3.5022894195593E+14
Volume 2.7108834483297E+21
Height 13406624.363144