21020545 (number)

21020545 is an odd 8-digits composite number following 21020544 and preceding 21020546. In scientific notation, it is written as 2.1020545 × 10^7. The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors. There are 13305024 positive integers (up to 21020545) that are relatively prime to 21020545.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1020545 × 10^7
Engineering notation 2.1020545 × 10^6

Prime Factorization of 21020545

Prime Factorization 5 × 7 × 13 × 46199

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21020545
Product of the distinct prime numbers

The prime factorization of 21020545 is 5 × 7 × 13 × 46199. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 2, 38, 49, 334, 573, 8133, 1562, 95223, 51388, 543370, 882200, 8495632, 4075669, 29783297, 58356224, 551330403, 669119811, 5396531470, 1692884365

Basic calculations (n = 21020545)

Multiplication

n×y
n×2 42041090
n×3 63061635
n×4 84082180
n×5 105102725

Division

n÷y
n÷2 10510272.5
n÷3 7006848.3333333
n÷3 5255136.25
n÷5 4204109

Exponentiation

ny
n2 441863312097025
n3 9.2882076357846E+21
n4 1.9524318657735E+29
n5 4.1041181893926E+36

Nth Root

y√n
2√n 4584.8167902327
3√n 275.98235989618
4√n 67.711275207551
5√n 29.142633482897

Divisors of 21020545

1, 5, 7, 13, 35, 65, 91, 455, 46199, 230995, 323393, 600587, 1616965, 3002935, 4204109, 21020545

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 -21020544
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 21020545 can be divided by 16 positive divisors. The sum of these divisors (counting 21020545) is 1, the average is 0.0625.

Base conversion 21020545

Base System Value
2 Binary 1010000001011111110000001
3 Ternary 1110112221202201
4 Quaternary 1100023332001
5 Quinary 20340124140
6 Senary 2030313201
8 Octal 120137601
10 Decimal 21020545
12 Duodecimal 7058801
16 Hexadecimal 140bf81
20 Vigesimal 6b7b75
36 Base36 cijk1

Cryptographic Hash Functions

md5 cb3dca4a7ff9a9a5aedf6b83b7175faf
sha1 578cf65db841f85fbb8cec53f745ccebcf53ed13
sha256 7be4f709e36624a934dff014778e3c01c33d4147ff8aa93d65d4e18914849514
sha512 161093673cd37ac129f30b436fe812f8ffdb76d90bdf861f16297f4308855dc5368ea371679c17cc46042ae1e07da05028cdde5cb94ebe7763529f74514fdae9
ripemd-160 c7848fb86865409743977a432defaba37ec71340

21020545 as geometric shapes

Circle

Radius = n
Diameter 42041090
Circumference 132075979.49291
Area 1.3881545351749E+15

Sphere

Radius = n
Volume 3.8906353164797E+22
Surface area 5.5526181406995E+15
Circumference 132075979.49291

Square

Length = n
Perimeter 84082180
Area 441863312097025
Diagonal 29727539.827474

Cube

Length = n
Surface area 2651179872582150
Volume 9.2882076357846E+21
Space diagonal 36408651.942788

Equilateral Triangle

Length = n
Perimeter 63061635
Area 1.9133242663818E+14
Altitude 18204325.971394

Triangular Pyramid

Length = n
Surface area 1.9133242663818E+14
Volume 1.0946257673887E+21
Height 9909179.9424913