13945 (number)

13945 is an odd 5-digits composite number following 13944 and preceding 13946. In scientific notation, it is written as 1.3945 × 10^4. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 11152 positive integers (up to 13945) that are relatively prime to 13945.

Interesting facts

Basic properties

Name

Name thirteen thousand nine hundred forty-five

Notation

Scientific notation 1.3945 × 10^4
Engineering notation 1.3945 × 10^3

Prime Factorization of 13945

Prime Factorization 5 × 2789

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 13945
Product of the distinct prime numbers

The prime factorization of 13945 is 5 × 2789. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 7, 83, 62, 450, 753, 5619, 8006, 66624, 95630, 733476, 953578, 6330013, 2916639, 343736, 59626947, 28444227, 578661835, 1531862657, 2789858480

Basic calculations (n = 13945)

Multiplication

n×y
n×2 27890
n×3 41835
n×4 55780
n×5 69725

Division

n÷y
n÷2 6972.5
n÷3 4648.3333333333
n÷3 3486.25
n÷5 2789

Exponentiation

ny
n2 194463025
n3 2711786883625
n4 37815868092150625
n5 5.2734228054504E+20

Nth Root

y√n
2√n 118.08894952535
3√n 24.06981983413
4√n 10.866873953688
5√n 6.7434742536193

Divisors of 13945

1, 5, 2789, 13945

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 -13944
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 13945 can be divided by 4 positive divisors. The sum of these divisors (counting 13945) is 1, the average is 0.25.

Base conversion 13945

Base System Value
2 Binary 11011001111001
3 Ternary 201010111
4 Quaternary 3121321
5 Quinary 421240
6 Senary 144321
8 Octal 33171
10 Decimal 13945
12 Duodecimal 80a1
16 Hexadecimal 3679
20 Vigesimal 1eh5
36 Base36 ard

Cryptographic Hash Functions

md5 c413f7f539f39425597705c9142a94b0
sha1 9b6683713ef8b747128eda8b3d02354475f26cfc
sha256 0fc1d5a61ae16c6672ec18d2eb808062dcfc548d4cb8380ec3bc4876147f6caa
sha512 39d9345122689c0d8d015016e0878d98e8346e5bf744edb18a4fb419e1963d7b5d3b3bd46155920412002a9f5b310cf00d401ac6cd6e880d1eeb88191b521b18
ripemd-160 65dcaf4541e82df6f092a98459cfddfaf5a81751

13945 as geometric shapes

Circle

Radius = n
Diameter 27890
Circumference 87619.019108619
Area 610923610.73485

Sphere

Radius = n
Volume 11359106335597
Surface area 2443694442.9394
Circumference 87619.019108619

Square

Length = n
Perimeter 55780
Area 194463025
Diagonal 19721.208127293

Cube

Length = n
Surface area 1166778150
Volume 2711786883625
Space diagonal 24153.448511548

Equilateral Triangle

Length = n
Perimeter 41835
Area 84204959.873384
Altitude 12076.724255774

Triangular Pyramid

Length = n
Surface area 84204959.873384
Volume 319587149090.66
Height 6573.7360424309