21285280 (number)

21285280 is an even 8-digits composite number following 21285279 and preceding 21285281. In scientific notation, it is written as 2.1285280 × 10^7. The sum of its digits is 28. It has a total of 7 prime factors and 24 positive divisors. There are 8514048 positive integers (up to 21285280) that are relatively prime to 21285280.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred eighty-five thousand two hundred eighty

Notation

Scientific notation 2.1285280 × 10^7
Engineering notation 2.1285280 × 10^6

Prime Factorization of 21285280

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 133033

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1330330
Product of the distinct prime numbers

The prime factorization of 21285280 is 2 × 2 × 2 × 2 × 2 × 5 × 133033. Since it has a total of 7 prime factors.

Most popular turbo-numbers

4, 10, 4, 34, 68, 237, 3322, 7632, 72864, 28575, 787841, 420729, 5115860, 6673349, 3298613, 12582233, 125401843, 798575652, 2869213098, 2101389299

Basic calculations (n = 21285280)

Multiplication

n×y
n×2 42570560
n×3 63855840
n×4 85141120
n×5 106426400

Division

n÷y
n÷2 10642640
n÷3 7095093.3333333
n÷3 5321320
n÷5 4257056

Exponentiation

ny
n2 453063144678400
n3 9.6435758921603E+21
n4 2.0526621306588E+29
n5 4.3691488196469E+36

Nth Root

y√n
2√n 4613.5972949533
3√n 277.13611368841
4√n 67.923466452716
5√n 29.215671554984

Divisors of 21285280

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 133033, 266066, 532132, 665165, 1064264, 1330330, 2128528, 2660660, 4257056, 5321320, 10642640, 21285280

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21285279
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21285280 can be divided by 24 positive divisors. The sum of these divisors (counting 21285280) is 1, the average is 0.041666666666667.

Base conversion 21285280

Base System Value
2 Binary 1010001001100100110100000
3 Ternary 1111001101220201
4 Quaternary 1101030212200
5 Quinary 20422112110
6 Senary 2040114544
8 Octal 121144640
10 Decimal 21285280
12 Duodecimal 7165a54
16 Hexadecimal 144c9a0
20 Vigesimal 6d0d40
36 Base36 co7ts

Cryptographic Hash Functions

md5 ba774850c778b89516e9734a85388264
sha1 9eb962c2efdf1576451c81d738462928140b19dd
sha256 df84c48936613942d3049d9a92acb3ab0297ad4b11148653c05fe23fee4e7b88
sha512 681742da31b7b39282929ba4a9cb16fab7f51dfbd987fa14a1d2ce04b6cbf66e997141a3547aa790db843939107b7afec8e6e3970a610960309d1bc756b37d05
ripemd-160 8ccae47e0825db1a616ba40f9a75b41fb2e2a0f6

21285280 as geometric shapes

Circle

Radius = n
Diameter 42570560
Circumference 133739358.5552
Area 1.423339846934E+15

Sphere

Radius = n
Volume 4.0394916236195E+22
Surface area 5.6933593877358E+15
Circumference 133739358.5552

Square

Length = n
Perimeter 85141120
Area 453063144678400
Diagonal 30101931.654909

Cube

Length = n
Surface area 2718378868070400
Volume 9.6435758921603E+21
Space diagonal 36867186.41333

Equilateral Triangle

Length = n
Perimeter 63855840
Area 1.9618209640498E+14
Altitude 18433593.206665

Triangular Pyramid

Length = n
Surface area 1.9618209640498E+14
Volume 1.1365063180389E+21
Height 10033977.218303