21684489 (number)

21684489 is an odd 8-digits composite number following 21684488 and preceding 21684490. In scientific notation, it is written as 2.1684489 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 13892480 positive integers (up to 21684489) that are relatively prime to 21684489.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-four thousand four hundred eighty-nine

Notation

Scientific notation 2.1684489 × 10^7
Engineering notation 2.1684489 × 10^6

Prime Factorization of 21684489

Prime Factorization 29 × 3 × 281 × 887

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21684489
Product of the distinct prime numbers

The prime factorization of 21684489 is 29 × 3 × 281 × 887. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 10, 16, 29, 989, 783, 3231, 9247, 54044, 77975, 896993, 494352, 9096665, 9994677, 40433464, 2884646, 883501084, 546403888, 6654810075, 2895432146

Basic calculations (n = 21684489)

Multiplication

n×y
n×2 43368978
n×3 65053467
n×4 86737956
n×5 108422445

Division

n÷y
n÷2 10842244.5
n÷3 7228163
n÷3 5421122.25
n÷5 4336897.8

Exponentiation

ny
n2 470217063191121
n3 1.019641673438E+22
n4 2.2110408651608E+29
n5 4.794529131913E+36

Nth Root

y√n
2√n 4656.6607134297
3√n 278.85797167244
4√n 68.239729728581
5√n 29.32444750813

Divisors of 21684489

1, 3, 29, 87, 281, 843, 887, 2661, 8149, 24447, 25723, 77169, 249247, 747741, 7228163, 21684489

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 -21684488
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 21684489 can be divided by 16 positive divisors. The sum of these divisors (counting 21684489) is 1, the average is 0.0625.

Base conversion 21684489

Base System Value
2 Binary 1010010101110000100001001
3 Ternary 1111210200112020
4 Quaternary 1102232010021
5 Quinary 21022400424
6 Senary 2052435053
8 Octal 122560411
10 Decimal 21684489
12 Duodecimal 7318a89
16 Hexadecimal 14ae109
20 Vigesimal 6fab49
36 Base36 cwrux

Cryptographic Hash Functions

md5 b35a49d785ea2291d95b93a875761e61
sha1 9244f9252b460e46eb47f870477a679594af956a
sha256 88484e9312ae9060a5ee877d8f823b7ddacb985c79ceb15fa81b53c8cae50d0f
sha512 ede2f115c992e4c70fb10d99df6fa6c2a9fe2e398f1c13b1fb469093350047a4180dac6232854f201370cbdd2e464ce6c7a7f58f5dcf91c788c23cffc103d457
ripemd-160 33eb4aaddce4575f5a0fdab93adb9919561d2af8

21684489 as geometric shapes

Circle

Radius = n
Diameter 43368978
Circumference 136247662.6785
Area 1.4772304713138E+15

Sphere

Radius = n
Volume 4.2710650540892E+22
Surface area 5.9089218852552E+15
Circumference 136247662.6785

Square

Length = n
Perimeter 86737956
Area 470217063191121
Diagonal 30666498.43693

Cube

Length = n
Surface area 2821302379146726
Volume 1.019641673438E+22
Space diagonal 37558636.684168

Equilateral Triangle

Length = n
Perimeter 65053467
Area 2.0360996100821E+14
Altitude 18779318.342084

Triangular Pyramid

Length = n
Surface area 2.0360996100821E+14
Volume 1.201659236114E+21
Height 10222166.145643