20705 (number)

20705 is an odd 5-digits composite number following 20704 and preceding 20706. In scientific notation, it is written as 2.0705 × 10^4. The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors. There are 16000 positive integers (up to 20705) that are relatively prime to 20705.

Interesting facts

Basic properties

Name

Name twenty thousand seven hundred five

Notation

Scientific notation 2.0705 × 10^4
Engineering notation 2.0705 × 10^3

Prime Factorization of 20705

Prime Factorization 205 × 101

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20705
Product of the distinct prime numbers

The prime factorization of 20705 is 205 × 101. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 3, 61, 90, 694, 646, 5698, 9598, 97492, 25792, 735400, 469010, 3887060, 7550268, 74276629, 33176797, 611114873, 726703494, 9119364532, 2629195454

Basic calculations (n = 20705)

Multiplication

n×y
n×2 41410
n×3 62115
n×4 82820
n×5 103525

Division

n÷y
n÷2 10352.5
n÷3 6901.6666666667
n÷3 5176.25
n÷5 4141

Exponentiation

ny
n2 428697025
n3 8876171902625
n4 183781139243850625
n5 3.8051884880439E+21

Nth Root

y√n
2√n 143.89232085139
3√n 27.459444352157
4√n 11.99551252975
5√n 7.2981880075255

Divisors of 20705

1, 101, 205, 20705

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 -20704
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 20705 can be divided by 4 positive divisors. The sum of these divisors (counting 20705) is 1, the average is 0.25.

Base conversion 20705

Base System Value
2 Binary 101000011100001
3 Ternary 1001101212
4 Quaternary 11003201
5 Quinary 1130310
6 Senary 235505
8 Octal 50341
10 Decimal 20705
12 Duodecimal bb95
16 Hexadecimal 50e1
20 Vigesimal 2bf5
36 Base36 fz5

Cryptographic Hash Functions

md5 a34b94370b856a83f1af1fc45af2de5b
sha1 0a7032add55231cc9586fab8470208b9676fd916
sha256 8ff23221fb0c8a43816e8ca653593a520ae73d4b04d7a379465759cbc7fd5dee
sha512 59a726cc843696e6d113234b590f2fe43ff8a6eaf9027ea77dc405a733c9ebc75164120aa678866d11381257b4436ffcb0405ad75972069f2df817b25f13a85c
ripemd-160 eef110a2e6080404700719b5caa9211a47c2da3e

20705 as geometric shapes

Circle

Radius = n
Diameter 41410
Circumference 130093.35178515
Area 1346791424.3558

Sphere

Radius = n
Volume 37180421921716
Surface area 5387165697.4232
Circumference 130093.35178515

Square

Length = n
Perimeter 82820
Area 428697025
Diagonal 29281.291808935

Cube

Length = n
Surface area 2572182150
Volume 8876171902625
Space diagonal 35862.111970714

Equilateral Triangle

Length = n
Perimeter 62115
Area 185631257.08841
Altitude 17931.055985357

Triangular Pyramid

Length = n
Surface area 185631257.08841
Volume 1046066890553.9
Height 9760.4306029783