20457 (number)

20457 is an odd 5-digits composite number following 20456 and preceding 20458. In scientific notation, it is written as 2.0457 × 10^4. The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors. There are 13632 positive integers (up to 20457) that are relatively prime to 20457.

Interesting facts

Basic properties

Name

Name twenty thousand four hundred fifty-seven

Notation

Scientific notation 2.0457 × 10^4
Engineering notation 2.0457 × 10^3

Prime Factorization of 20457

Prime Factorization 9 × 2273

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20457
Product of the distinct prime numbers

The prime factorization of 20457 is 9 × 2273. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 3, 8, 96, 418, 860, 6534, 2603, 74290, 70923, 520194, 951628, 9089781, 5196091, 53663594, 68073738, 178769406, 866834065, 648858751, 5639412439

Basic calculations (n = 20457)

Multiplication

n×y
n×2 40914
n×3 61371
n×4 81828
n×5 102285

Division

n÷y
n÷2 10228.5
n÷3 6819
n÷3 5114.25
n÷5 4091.4

Exponentiation

ny
n2 418488849
n3 8561026383993
n4 175132916737344801
n5 3.5826940776959E+21

Nth Root

y√n
2√n 143.02796929272
3√n 27.349369266904
4√n 11.959430140802
5√n 7.2806204136871

Divisors of 20457

1, 9, 2273, 20457

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 -20456
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 20457 can be divided by 4 positive divisors. The sum of these divisors (counting 20457) is 1, the average is 0.25.

Base conversion 20457

Base System Value
2 Binary 100111111101001
3 Ternary 1001001200
4 Quaternary 10333221
5 Quinary 1123312
6 Senary 234413
8 Octal 47751
10 Decimal 20457
12 Duodecimal ba09
16 Hexadecimal 4fe9
20 Vigesimal 2b2h
36 Base36 fs9

Cryptographic Hash Functions

md5 655473be4c6fe770aa0fdae2241feba3
sha1 367eeb25e60889dc3d04e1f70ac157772fa60d99
sha256 e5b56f87097c54704bdd53072896a710df897a15f7dd53b4680838cf563ab38c
sha512 9a7a666e741db7dcacad10ddb2dcdcc38da4b4edfc60f167a6895ecdc43c0e0c8305c2c6d59445af4529f51bea4bad1779623291f764a0b5cf4500f290f055cd
ripemd-160 14e3a238f8a4107061ebf2b3e850dd90b85cab2a

20457 as geometric shapes

Circle

Radius = n
Diameter 40914
Circumference 128535.12182897
Area 1314721493.6276

Sphere

Radius = n
Volume 35860343460188
Surface area 5258885974.5106
Circumference 128535.12182897

Square

Length = n
Perimeter 81828
Area 418488849
Diagonal 28930.566845466

Cube

Length = n
Surface area 2510933094
Volume 8561026383993
Space diagonal 35432.563370437

Equilateral Triangle

Length = n
Perimeter 61371
Area 181210987.21725
Altitude 17716.281685218

Triangular Pyramid

Length = n
Surface area 181210987.21725
Volume 1008926635006.4
Height 9643.5222818221