75 (number)

75 is an odd 2-digits composite number following 74 and preceding 76. In scientific notation, it is written as 7.5 × 10^1. The sum of its digits is 12. It has a total of 3 prime factors and 6 positive divisors. There are 40 positive integers (up to 75) that are relatively prime to 75.

Interesting facts

Basic properties

Name

Name seventy-five

Notation

Scientific notation 7.5 × 10^1
Engineering notation 7.5 × 10^0

Prime Factorization of 75

Prime Factorization 3 × 5 × 5

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 15
Product of the distinct prime numbers

The prime factorization of 75 is 3 × 5 × 5. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 7, 47, 25, 680, 136, 933, 4915, 88210, 90209, 738584, 728238, 7029754, 4170331, 20023644, 75549849, 721109971, 372080990, 3457630294, 6389998428

Basic calculations (n = 75)

Multiplication

n×y
n×2 150
n×3 225
n×4 300
n×5 375

Division

n÷y
n÷2 37.5
n÷3 25
n÷3 18.75
n÷5 15

Exponentiation

ny
n2 5625
n3 421875
n4 31640625
n5 2373046875

Nth Root

y√n
2√n 8.6602540378444
3√n 4.2171633265087
4√n 2.9428309563827
5√n 2.3714406097793

Divisors of 75

1, 3, 5, 15, 25, 75

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -74
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 75 can be divided by 6 positive divisors. The sum of these divisors (counting 75) is 1, the average is 0.16666666666667.

Base conversion 75

Base System Value
2 Binary 1001011
3 Ternary 2210
4 Quaternary 1023
5 Quinary 300
6 Senary 203
8 Octal 113
10 Decimal 75
12 Duodecimal 63
16 Hexadecimal 4b
20 Vigesimal 3f
36 Base36 23

Cryptographic Hash Functions

md5 d09bf41544a3365a46c9077ebb5e35c3
sha1 450ddec8dd206c2e2ab1aeeaa90e85e51753b8b7
sha256 f369cb89fc627e668987007d121ed1eacdc01db9e28f8bb26f358b7d8c4f08ac
sha512 b621c14d7802cba525145e0f2abea6cdb178415b230ca23ce27d35e95ecf2afd8b715fd1774f833ab3caba48f38b4acf4600dbc517fd78daf779cb9d66c65acf
ripemd-160 435c73d47606c7a8b157935dbf4d66ee485c2a60

75 as geometric shapes

Circle

Radius = n
Diameter 150
Circumference 471.23889803847
Area 17671.458676443

Sphere

Radius = n
Volume 1767145.8676443
Surface area 70685.83470577
Circumference 471.23889803847

Square

Length = n
Perimeter 300
Area 5625
Diagonal 106.06601717798

Cube

Length = n
Surface area 33750
Volume 421875
Space diagonal 129.90381056767

Equilateral Triangle

Length = n
Perimeter 225
Area 2435.6964481437
Altitude 64.951905283833

Triangular Pyramid

Length = n
Surface area 2435.6964481437
Volume 49718.445552179
Height 35.355339059327