28121520 (number)

28121520 is an even 8-digits composite number following 28121519 and preceding 28121521. In scientific notation, it is written as 2.8121520 × 10^7. The sum of its digits is 21. It has a total of 8 prime factors and 80 positive divisors. There are 6082560 positive integers (up to 28121520) that are relatively prime to 28121520.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred twenty-one thousand five hundred twenty

Notation

Scientific notation 2.8121520 × 10^7
Engineering notation 2.8121520 × 10^6

Prime Factorization of 28121520

Prime Factorization 2 × 2 × 2 × 2 × 3 × 95 × 7 × 881

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 3515190
Product of the distinct prime numbers

The prime factorization of 28121520 is 2 × 2 × 2 × 2 × 3 × 95 × 7 × 881. Since it has a total of 8 prime factors.

Most popular turbo-numbers

7, 10, 95, 99, 181, 982, 9506, 6678, 87010, 43461, 445879, 403240, 75624, 6176288, 52956619, 25523820, 118912632, 690036586, 8778762438, 748995363

Basic calculations (n = 28121520)

Multiplication

n×y
n×2 56243040
n×3 84364560
n×4 112486080
n×5 140607600

Division

n÷y
n÷2 14060760
n÷3 9373840
n÷3 7030380
n÷5 5624304

Exponentiation

ny
n2 790819887110400
n3 2.2239057271773E+22
n4 6.2539609384931E+29
n5 1.7587088761105E+37

Nth Root

y√n
2√n 5302.9727512029
3√n 304.0975564092
4√n 72.821512969746
5√n 30.889278064948

Divisors of 28121520

1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 95, 112, 168, 190, 285, 336, 380, 570, 665, 760, 881, 1140, 1330, 1520, 1762, 1995, 2280, 2643, 2660, 3524, 3990, 4560, 5286, 5320, 6167, 7048, 7980, 10572, 10640, 12334, 14096, 15960, 18501, 21144, 24668, 31920, 37002, 42288, 49336, 74004, 83695, 98672, 148008, 167390, 251085, 296016, 334780, 502170, 585865, 669560, 1004340, 1171730, 1339120, 1757595, 2008680, 2343460, 3515190, 4017360, 4686920, 7030380, 9373840, 14060760, 28121520

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28121519
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28121520 can be divided by 80 positive divisors. The sum of these divisors (counting 28121520) is 1, the average is 0.0125.

Base conversion 28121520

Base System Value
2 Binary 1101011010001100110110000
3 Ternary 1221220201110210
4 Quaternary 1223101212300
5 Quinary 24144342040
6 Senary 2442424120
8 Octal 153214660
10 Decimal 28121520
12 Duodecimal 9502040
16 Hexadecimal 1ad19b0
20 Vigesimal 8ff3g0
36 Base36 gqqpc

Cryptographic Hash Functions

md5 e1d59d37ec676852c6dee225083b1e35
sha1 98a79208d851192a6a6532383e0ff1de4886b6ff
sha256 74290839d83ed09b4d46347a597909d1b590706b4ad943dbb18ead02226ee1d2
sha512 3fdb70ea7d5e374a74ff3eec59a2385bed9f6c6698e2d05a82c3e1fba37f7e53f9a4d0ddfb1e7d923b9ff42e6145dee5b86798343d39d8ca0281cd7cba7f7591
ripemd-160 9bd3be6383b02e94388b486296ebfe36dd1125ed

28121520 as geometric shapes

Circle

Radius = n
Diameter 56243040
Circumference 176692721.27956
Area 2.4844339476587E+15

Sphere

Radius = n
Volume 9.3154745263686E+22
Surface area 9.937735790635E+15
Circumference 176692721.27956

Square

Length = n
Perimeter 112486080
Area 790819887110400
Diagonal 39769834.978546

Cube

Length = n
Surface area 4744919322662400
Volume 2.2239057271773E+22
Space diagonal 48707901.426064

Equilateral Triangle

Length = n
Perimeter 84364560
Area 3.4243505602777E+14
Altitude 24353950.713032

Triangular Pyramid

Length = n
Surface area 3.4243505602777E+14
Volume 2.6208980340111E+21
Height 13256611.659515