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

20421855 (number)

20421855 is an odd 8-digits composite number following 20421854 and preceding 20421856. In scientific notation, it is written as 2.0421855 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 10891584 positive integers (up to 20421855) that are relatively prime to 20421855.

Interesting facts

20421855 has 8 divisors, whose sum is 24203840
The reverse of 20421855 is 55812402
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	2.0421855 × 10^7
Engineering notation	2.0421855 × 10^6

Prime Factorization of 20421855

Prime Factorization 15 × 9 × 151273

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20421855	Product of the distinct prime numbers

The prime factorization of 20421855 is 15 × 9 × 151273. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 10, 3, 21, 178, 820, 7674, 4165, 10877, 82348, 690624, 193931, 565257, 4458199, 64956667, 18382362, 23700485, 42342020, 2731940099, 6016782340

Basic calculations (n = 20421855)

Multiplication

n×y

n×2	40843710
n×3	61265565
n×4	81687420
n×5	102109275

Division

n÷y

n÷2	10210927.5
n÷3	6807285
n÷3	5105463.75
n÷5	4084371

Exponentiation

n^y

n²	417052161641025
n³	8.5169787724696E+21
n⁴	1.7393250552945E+29
n⁵	3.5520244077092E+36

Nth Root

^y√n

²√n	4519.0546577797
³√n	273.33698273269
⁴√n	67.223914329498
⁵√n	28.97470597917

Divisors of 20421855

1, 9, 15, 135, 151273, 1361457, 2269095, 20421855

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	-20421854	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 20421855 can be divided by 8 positive divisors. The sum of these divisors (counting 20421855) is 1, the average is 0.125.

Base conversion 20421855

Base	System	Value
2	Binary	1001101111001110011011111
3	Ternary	1102102112112000
4	Quaternary	1031321303133
5	Quinary	20211444410
6	Senary	2005413343
8	Octal	115716337
10	Decimal	20421855
12	Duodecimal	6a0a253
16	Hexadecimal	1379cdf
20	Vigesimal	67cecf
36	Base36	c5plr

Cryptographic Hash Functions

md5	9c6acbbf11a30dd4ec8c1a4c19b95403
sha1	0c6016f6d691dfde5c854f6a3de95b15eb1c0c21
sha256	a3e83e4f8a5c7cb39e9c35a53d5c3edef2d61e5c442c395e4d513ab6ced8f465
sha512	1902d7fb3a68ff85a425e907149edb2420bda1f1d4cb343f78437ae868e26691252ca59d2d7a9add41241cec61e1ee92208327e69fe58a1e2eebb96d76e16198
ripemd-160	98e2e97144535d60158d74822cc41a4a62910398

20421855 as geometric shapes

Circle

Radius = n

Diameter	40843710
Circumference	128314299.28135
Area	1.3102080071752E+15

Sphere

Radius = n

Volume	3.5675837256494E+22
Surface area	5.2408320287007E+15
Circumference	128314299.28135

Square

Length = n

Perimeter	81687420
Area	417052161641025
Diagonal	28880864.309817

Cube

Length = n

Surface area	2502312969846150
Volume	8.5169787724696E+21
Space diagonal	35371690.444805

Equilateral Triangle

Length = n

Perimeter	61265565
Area	1.8058888334217E+14
Altitude	17685845.222402

Triangular Pyramid

Length = n

Surface area	1.8058888334217E+14
Volume	1.0037355742059E+21
Height	9626954.7699389