Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21016821 (number)

21016821 is an odd 8-digits composite number following 21016820 and preceding 21016822. In scientific notation, it is written as 2.1016821 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 11962944 positive integers (up to 21016821) that are relatively prime to 21016821.

Interesting facts

21016821 has 8 divisors, whose sum is 22103224
The reverse of 21016821 is 12861012
Previous prime number is 277

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

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

Notation

Scientific notation	2.1016821 × 10^7
Engineering notation	2.1016821 × 10^6

Prime Factorization of 21016821

Prime Factorization 21 × 277 × 3613

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21016821	Product of the distinct prime numbers

The prime factorization of 21016821 is 21 × 277 × 3613. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 4, 49, 16, 326, 49, 9976, 5264, 77104, 39039, 543278, 973657, 4657453, 9206684, 36648439, 30285325, 246411339, 870520501, 3158839393, 5626441581

Basic calculations (n = 21016821)

Multiplication

n×y

n×2	42033642
n×3	63050463
n×4	84067284
n×5	105084105

Division

n÷y

n÷2	10508410.5
n÷3	7005607
n÷3	5254205.25
n÷5	4203364.2

Exponentiation

n^y

n²	441706764946041
n³	9.28327201336E+21
n⁴	1.951048661991E+29
n⁵	4.1004840491354E+36

Nth Root

^y√n

²√n	4584.4106491456
³√n	275.96606125427
⁴√n	67.708276075718
⁵√n	29.141600827858

Divisors of 21016821

1, 21, 277, 3613, 5817, 75873, 1000801, 21016821

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21016820	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21016821 can be divided by 8 positive divisors. The sum of these divisors (counting 21016821) is 1, the average is 0.125.

Base conversion 21016821

Base	System	Value
2	Binary	1010000001011000011110101
3	Ternary	1110112202122210
4	Quaternary	1100023003311
5	Quinary	20340014241
6	Senary	2030244033
8	Octal	120130365
10	Decimal	21016821
12	Duodecimal	7056619
16	Hexadecimal	140b0f5
20	Vigesimal	6b7211
36	Base36	cigol

Cryptographic Hash Functions

md5	900725bb38206a212b1866a77e21989f
sha1	140ebc83192cac92e2f03a542439ae5f946e8ec4
sha256	7808f87059c88647675859a46c5a764928ebd56e6bd9c1dcd80cb53bdddf785a
sha512	868fd70861d1f89e95487bef746195f15ed0d8e8627080252d8432e0f78b8c19861f549157c87d751115f018eecd6d203dad121169d5cc8a0ac5a19117bd1c28
ripemd-160	76f4dbdaf07f23a3810a87069d2885df650f892e

21016821 as geometric shapes

Circle

Radius = n

Diameter	42033642
Circumference	132052580.91082
Area	1.3876627277954E+15

Sphere

Radius = n

Volume	3.888567887793E+22
Surface area	5.5506509111816E+15
Circumference	132052580.91082

Square

Length = n

Perimeter	84067284
Area	441706764946041
Diagonal	29722273.296168

Cube

Length = n

Surface area	2650240589676246
Volume	9.28327201336E+21
Space diagonal	36402201.785581

Equilateral Triangle

Length = n

Perimeter	63050463
Area	1.9126463973336E+14
Altitude	18201100.89279

Triangular Pyramid

Length = n

Surface area	1.9126463973336E+14
Volume	1.0940440987077E+21
Height	9907424.4320559