1995 (number)

1995 is an odd 4-digits composite number following 1994 and preceding 1996. In scientific notation, it is written as 1.995 × 10^3. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 864 positive integers (up to 1995) that are relatively prime to 1995.

Interesting facts

Basic properties

Name

Name one thousand nine hundred ninety-five

Notation

Scientific notation 1.995 × 10^3
Engineering notation 1.995 × 10^3

Prime Factorization of 1995

Prime Factorization 15 × 7 × 19

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 1995
Product of the distinct prime numbers

The prime factorization of 1995 is 15 × 7 × 19. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 1995)

Multiplication

n×y
n×2 3990
n×3 5985
n×4 7980
n×5 9975

Division

n÷y
n÷2 997.5
n÷3 665
n÷3 498.75
n÷5 399

Exponentiation

ny
n2 3980025
n3 7940149875
n4 15840599000625
n5 31601995006246875

Nth Root

y√n
2√n 44.665422868255
3√n 12.588702395242
4√n 6.6832194987337
5√n 4.5707617040526

Divisors of 1995

1, 7, 15, 19, 105, 133, 285, 1995

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 -1994
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 1995 can be divided by 8 positive divisors. The sum of these divisors (counting 1995) is 1, the average is 0.125.

Base conversion 1995

Base System Value
2 Binary 11111001011
3 Ternary 2201220
4 Quaternary 133023
5 Quinary 30440
6 Senary 13123
8 Octal 3713
10 Decimal 1995
12 Duodecimal 11a3
16 Hexadecimal 7cb
20 Vigesimal 4jf
36 Base36 1jf

Cryptographic Hash Functions

md5 3f088ebeda03513be71d34d214291986
sha1 87e8db4f2338ba69baa1c7d4e60969caf4f06d9e
sha256 e78f27ab3ef177a9926e6b90e572b9853ce6cf4d87512836e9ae85807ec9d7fe
sha512 b40ce4d0687ba919ceaacc8049fbf31121fdeab05d4508fb9da018d3eda143fb228723c9be8996599162d17c48811949ea39ab7ee5e254a3d52f508b93ce42f2
ripemd-160 99bdbb9f17598ceb5b61528e09c977daa2bf5ba0

1995 as geometric shapes

Circle

Radius = n
Diameter 3990
Circumference 12534.954687823
Area 12503617.301104

Sphere

Radius = n
Volume 33259622020.936
Surface area 50014469.204415
Circumference 12534.954687823

Square

Length = n
Perimeter 7980
Area 3980025
Diagonal 2821.3560569343

Cube

Length = n
Surface area 23880150
Volume 7940149875
Space diagonal 3455.4413610999

Equilateral Triangle

Length = n
Perimeter 5985
Area 1723401.3788486
Altitude 1727.72068055

Triangular Pyramid

Length = n
Surface area 1723401.3788486
Volume 935755636.70834
Height 940.45201897811