15945 (number)

15945 is an odd 5-digits composite number following 15944 and preceding 15946. In scientific notation, it is written as 1.5945 × 10^4. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 8496 positive integers (up to 15945) that are relatively prime to 15945.

Interesting facts

Basic properties

Name

Name fifteen thousand nine hundred forty-five

Notation

Scientific notation 1.5945 × 10^4
Engineering notation 1.5945 × 10^3

Prime Factorization of 15945

Prime Factorization 5 × 3 × 1063

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 15945
Product of the distinct prime numbers

The prime factorization of 15945 is 5 × 3 × 1063. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 3, 37, 33, 944, 897, 6730, 5572, 45293, 58035, 174712, 308006, 178543, 7695602, 9908906, 18018621, 330711219, 361980052, 9500944127, 6985224638

Basic calculations (n = 15945)

Multiplication

n×y
n×2 31890
n×3 47835
n×4 63780
n×5 79725

Division

n÷y
n÷2 7972.5
n÷3 5315
n÷3 3986.25
n÷5 3189

Exponentiation

ny
n2 254243025
n3 4053905033625
n4 64639515761150625
n5 1.0306770788115E+21

Nth Root

y√n
2√n 126.273512662
3√n 25.16951465998
4√n 11.237148778138
5√n 6.926676494823

Divisors of 15945

1, 3, 5, 15, 1063, 3189, 5315, 15945

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 -15944
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 15945 can be divided by 8 positive divisors. The sum of these divisors (counting 15945) is 1, the average is 0.125.

Base conversion 15945

Base System Value
2 Binary 11111001001001
3 Ternary 210212120
4 Quaternary 3321021
5 Quinary 1002240
6 Senary 201453
8 Octal 37111
10 Decimal 15945
12 Duodecimal 9289
16 Hexadecimal 3e49
20 Vigesimal 1jh5
36 Base36 cax

Cryptographic Hash Functions

md5 b750c583c4740415f8c803198ad9a318
sha1 44eae9bb8a2d60b0d75ee3255010c319275438af
sha256 a72b7aa58806252a150a5be569700d4d9e199f50b906f6a4f2fd5c7ea67a2131
sha512 608770678e521af607ec0216146bdd02058dd8b60c190946a268b5859055c404b8f2f4115bf4650e5da4527e4375e085cf13cdd26a872e5e1e1cb4a92f64d17a
ripemd-160 13587fd2a2a4db39ee7b2672a20425329951f54b

15945 as geometric shapes

Circle

Radius = n
Diameter 31890
Circumference 100185.38972298
Area 798728019.56645

Sphere

Radius = n
Volume 16980957695983
Surface area 3194912078.2658
Circumference 100185.38972298

Square

Length = n
Perimeter 63780
Area 254243025
Diagonal 22549.635252039

Cube

Length = n
Surface area 1525458150
Volume 4053905033625
Space diagonal 27617.550126686

Equilateral Triangle

Length = n
Perimeter 47835
Area 110090459.1925
Altitude 13808.775063343

Triangular Pyramid

Length = n
Surface area 110090459.1925
Volume 477757289927.09
Height 7516.545084013