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

20421857 (number)

20421857 is an odd 8-digits composite number following 20421856 and preceding 20421858. In scientific notation, it is written as 2.0421857 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 20375316 positive integers (up to 20421857) that are relatively prime to 20421857.

Interesting facts

20421857 has 4 divisors, whose sum is 20468400
The reverse of 20421857 is 75812402
Previous prime number is 443

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

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

Notation

Scientific notation	2.0421857 × 10^7
Engineering notation	2.0421857 × 10^6

Prime Factorization of 20421857

Prime Factorization 443 × 46099

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20421857	Product of the distinct prime numbers

The prime factorization of 20421857 is 443 × 46099. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 6, 87, 72, 891, 47, 7653, 5488, 67036, 12253, 852630, 258452, 2674143, 2730375, 80642182, 65394852, 346162592, 74274006, 3901464253, 9811115910

Basic calculations (n = 20421857)

Multiplication

n×y

n×2	40843714
n×3	61265571
n×4	81687428
n×5	102109285

Division

n÷y

n÷2	10210928.5
n÷3	6807285.6666667
n÷3	5105464.25
n÷5	4084371.4

Exponentiation

n^y

n²	417052243328449
n³	8.5169812747828E+21
n⁴	1.7393257366529E+29
n⁵	3.5520261470346E+36

Nth Root

^y√n

²√n	4519.0548790649
³√n	273.33699165571
⁴√n	67.223915975379
⁵√n	28.974706546694

Divisors of 20421857

1, 443, 46099, 20421857

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20421856	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20421857 can be divided by 4 positive divisors. The sum of these divisors (counting 20421857) is 1, the average is 0.25.

Base conversion 20421857

Base	System	Value
2	Binary	1001101111001110011100001
3	Ternary	1102102112112002
4	Quaternary	1031321303201
5	Quinary	20211444412
6	Senary	2005413345
8	Octal	115716341
10	Decimal	20421857
12	Duodecimal	6a0a255
16	Hexadecimal	1379ce1
20	Vigesimal	67cech
36	Base36	c5plt

Cryptographic Hash Functions

md5	10eb4c07471e579f171a32231afd445c
sha1	247ee12c8478243c314fe809916881f4d5da6966
sha256	746bb6013b2798009eb01b6d82e372120a00c36f21e28b114e008d6e8015a049
sha512	f94f7a0f607934a0f5ca84cb93aefeeb1d48044bfbcbae745d141a0892b984863129a0cb52a2e564ee877a54d772cc76fc3cdd9dbc407bdd17844df4bf75c5cd
ripemd-160	7980556ea9b782c18a64beeb3e919b2c8ecec3a2

20421857 as geometric shapes

Circle

Radius = n

Diameter	40843714
Circumference	128314311.84772
Area	1.3102082638038E+15

Sphere

Radius = n

Volume	3.5675847738159E+22
Surface area	5.2408330552152E+15
Circumference	128314311.84772

Square

Length = n

Perimeter	81687428
Area	417052243328449
Diagonal	28880867.138244

Cube

Length = n

Surface area	2502313459970694
Volume	8.5169812747828E+21
Space diagonal	35371693.908906

Equilateral Triangle

Length = n

Perimeter	61265571
Area	1.8058891871386E+14
Altitude	17685846.954453

Triangular Pyramid

Length = n

Surface area	1.8058891871386E+14
Volume	1.0037358691063E+21
Height	9626955.712748