1440 (number)

1440 is an even 4-digits composite number following 1439 and preceding 1441. In scientific notation, it is written as 1.440 × 10^3. The sum of its digits is 9. It has a total of 8 prime factors and 36 positive divisors. There are 384 positive integers (up to 1440) that are relatively prime to 1440.

Interesting facts

Basic properties

Name

Name one thousand four hundred forty

Notation

Scientific notation 1.440 × 10^3
Engineering notation 1.440 × 10^3

Prime Factorization of 1440

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 3 × 3

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 30
Product of the distinct prime numbers

The prime factorization of 1440 is 2 × 2 × 2 × 2 × 2 × 5 × 3 × 3. Since it has a total of 8 prime factors.

Most popular turbo-numbers

Basic calculations (n = 1440)

Multiplication

n×y
n×2 2880
n×3 4320
n×4 5760
n×5 7200

Division

n÷y
n÷2 720
n÷3 480
n÷3 360
n÷5 288

Exponentiation

ny
n2 2073600
n3 2985984000
n4 4299816960000
n5 6191736422400000

Nth Root

y√n
2√n 37.947331922021
3√n 11.292432346572
4√n 6.160140576482
5√n 4.2822547366766

Divisors of 1440

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1440 can be divided by 36 positive divisors. The sum of these divisors (counting 1440) is 1, the average is 0.027777777777778.

Base conversion 1440

Base System Value
2 Binary 10110100000
3 Ternary 1222100
4 Quaternary 112200
5 Quinary 21230
6 Senary 10400
8 Octal 2640
10 Decimal 1440
12 Duodecimal a00
16 Hexadecimal 5a0
20 Vigesimal 3c0
36 Base36 140

Cryptographic Hash Functions

md5 f4a331b7a22d1b237565d8813a34d8ac
sha1 3c5174b71d24aa217f93fc1b7439c1ee25e11556
sha256 a4ff3ad278c7b0575a8e32ae08eebfb327e37762cb1a2caa793c431b9b2ca2c6
sha512 2ba582daa457ab6f5793bd820842e0f584e9724f0f40af213cdaeca568ece04ac400fd3573a370ea5e2a05fd4f09f63c242b2042af8a765fde47e1d5e9f616ed
ripemd-160 ef88d01f391a9f53244d58c4facd028fc8717591

1440 as geometric shapes

Circle

Radius = n
Diameter 2880
Circumference 9047.7868423386
Area 6514406.5264838

Sphere

Radius = n
Volume 12507660530.849
Surface area 26057626.105935
Circumference 9047.7868423386

Square

Length = n
Perimeter 5760
Area 2073600
Diagonal 2036.4675298173

Cube

Length = n
Surface area 12441600
Volume 2985984000
Space diagonal 2494.1531628992

Equilateral Triangle

Length = n
Perimeter 4320
Area 897895.13864371
Altitude 1247.0765814496

Triangular Pyramid

Length = n
Surface area 897895.13864371
Volume 351901589.15242
Height 678.82250993909