28215538 (number)

28215538 is an even 8-digits composite number following 28215537 and preceding 28215539. In scientific notation, it is written as 2.8215538 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 12994560 positive integers (up to 28215538) that are relatively prime to 28215538.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred fifteen thousand five hundred thirty-eight

Notation

Scientific notation 2.8215538 × 10^7
Engineering notation 2.8215538 × 10^6

Prime Factorization of 28215538

Prime Factorization 2 × 13 × 641 × 1693

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28215538
Product of the distinct prime numbers

The prime factorization of 28215538 is 2 × 13 × 641 × 1693. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 1, 78, 30, 344, 557, 9791, 7193, 25393, 29383, 812201, 44649, 2771228, 2789703, 46383230, 89316221, 457538940, 587322361, 6365278419, 7413388295

Basic calculations (n = 28215538)

Multiplication

n×y
n×2 56431076
n×3 84646614
n×4 112862152
n×5 141077690

Division

n÷y
n÷2 14107769
n÷3 9405179.3333333
n÷3 7053884.5
n÷5 5643107.6

Exponentiation

ny
n2 796116584629444
n3 2.2462857746042E+22
n4 6.3380161632205E+29
n5 1.7883053589796E+37

Nth Root

y√n
2√n 5311.83000481
3√n 304.43607344727
4√n 72.88230241156
5√n 30.909904774814

Divisors of 28215538

1, 2, 13, 26, 641, 1282, 1693, 3386, 8333, 16666, 22009, 44018, 1085213, 2170426, 14107769, 28215538

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28215537
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28215538 can be divided by 16 positive divisors. The sum of these divisors (counting 28215538) is 1, the average is 0.0625.

Base conversion 28215538

Base System Value
2 Binary 1101011101000100011110010
3 Ternary 1222002111102221
4 Quaternary 1223220203302
5 Quinary 24210344123
6 Senary 2444431254
8 Octal 153504362
10 Decimal 28215538
12 Duodecimal 954852a
16 Hexadecimal 1ae88f2
20 Vigesimal 8g6igi
36 Base36 gsr8y

Cryptographic Hash Functions

md5 ec5ef38300795ff118d329fc8dea0924
sha1 b88437b59743fd9d7e77f080fbca3ac8bede0a24
sha256 072f7a5b4dfd167087404c042ccf7fc8792233abe0456f720b6e8522842dc47b
sha512 72857a027923ceee9286d70ceafc78116905158c3702fae9ea2fbb0fd290fc7781681f61d327a3784de98607a5221bd1a64a72820df6f093a47cf0327ce578b2
ripemd-160 f629a9f8e17a3e4950fe7b1b9b228f191f3beed2

28215538 as geometric shapes

Circle

Radius = n
Diameter 56431076
Circumference 177283453.79577
Area 2.5010740136729E+15

Sphere

Radius = n
Volume 9.4092198498132E+22
Surface area 1.0004296054691E+16
Circumference 177283453.79577

Square

Length = n
Perimeter 112862152
Area 796116584629444
Diagonal 39902796.509253

Cube

Length = n
Surface area 4776699507776664
Volume 2.2462857746042E+22
Space diagonal 48870745.37889

Equilateral Triangle

Length = n
Perimeter 84646614
Area 3.447285933316E+14
Altitude 24435372.689445

Triangular Pyramid

Length = n
Surface area 3.447285933316E+14
Volume 2.6472731728425E+21
Height 13300932.169751