28557788 (number)

28557788 is an even 8-digits composite number following 28557787 and preceding 28557789. In scientific notation, it is written as 2.8557788 × 10^7. The sum of its digits is 50. It has a total of 5 prime factors and 18 positive divisors. There are 12238968 positive integers (up to 28557788) that are relatively prime to 28557788.

Interesting facts

Basic properties

Name

Name twenty-eight million five hundred fifty-seven thousand seven hundred eighty-eight

Notation

Scientific notation 2.8557788 × 10^7
Engineering notation 2.8557788 × 10^6

Prime Factorization of 28557788

Prime Factorization 2 × 2 × 7 × 7 × 145703

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2039842
Product of the distinct prime numbers

The prime factorization of 28557788 is 2 × 2 × 7 × 7 × 145703. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 8, 23, 27, 156, 550, 2271, 5446, 17214, 36243, 838139, 169716, 3555443, 6103888, 27599755, 26448004, 58354995, 864314513, 1298861849, 2530034176

Basic calculations (n = 28557788)

Multiplication

n×y
n×2 57115576
n×3 85673364
n×4 114231152
n×5 142788940

Division

n÷y
n÷2 14278894
n÷3 9519262.6666667
n÷3 7139447
n÷5 5711557.6

Exponentiation

ny
n2 815547255452944
n3 2.3290225625207E+22
n4 6.6511732587683E+29
n5 1.8994279587517E+37

Nth Root

y√n
2√n 5343.9487272989
3√n 305.66205018635
4√n 73.102316839475
5√n 30.984530019276

Divisors of 28557788

1, 2, 4, 7, 14, 28, 49, 98, 196, 145703, 291406, 582812, 1019921, 2039842, 4079684, 7139447, 14278894, 28557788

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28557787
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28557788 can be divided by 18 positive divisors. The sum of these divisors (counting 28557788) is 1, the average is 0.055555555555556.

Base conversion 28557788

Base System Value
2 Binary 1101100111100000111011100
3 Ternary 1222201212220212
4 Quaternary 1230330013130
5 Quinary 24302322123
6 Senary 2500031552
8 Octal 154740734
10 Decimal 28557788
12 Duodecimal 96925b8
16 Hexadecimal 1b3c1dc
20 Vigesimal 8i9e98
36 Base36 h03bw

Cryptographic Hash Functions

md5 4a36b6435f38a4f393b0f151481f10df
sha1 ca9ef450f67afebd4257f9a0fc61d1027437042a
sha256 b5eb7dfa31f1a92fc1728d1cdeff7f7b7e5c405c60ee773297abade35cba701c
sha512 1fdb46573390a8b65584e0f4dd888855930f6f45713bd79e865a9a389d6bc1b027a0ac5508b01fbe6eb814f14e302fdc093a762f8e0b4e24f407628ac8ab314a
ripemd-160 f05439936cdec4bc703d54819ee5e0d58cca24ca

28557788 as geometric shapes

Circle

Radius = n
Diameter 57115576
Circumference 179433873.96715
Area 2.5621172663863E+15

Sphere

Radius = n
Volume 9.7557868966132E+22
Surface area 1.0248469065545E+16
Circumference 179433873.96715

Square

Length = n
Perimeter 114231152
Area 815547255452944
Diagonal 40386811.100976

Cube

Length = n
Surface area 4893283532717664
Volume 2.3290225625207E+22
Space diagonal 49463539.767781

Equilateral Triangle

Length = n
Perimeter 85673364
Area 3.5314232060446E+14
Altitude 24731769.88389

Triangular Pyramid

Length = n
Surface area 3.5314232060446E+14
Volume 2.7447794124914E+21
Height 13462270.366992