21031440 (number)

21031440 is an even 8-digits composite number following 21031439 and preceding 21031441. In scientific notation, it is written as 2.1031440 × 10^7. The sum of its digits is 15. It has a total of 7 prime factors and 40 positive divisors. There are 5608320 positive integers (up to 21031440) that are relatively prime to 21031440.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand four hundred forty

Notation

Scientific notation 2.1031440 × 10^7
Engineering notation 2.1031440 × 10^6

Prime Factorization of 21031440

Prime Factorization 2 × 2 × 2 × 2 × 3 × 5 × 87631

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2628930
Product of the distinct prime numbers

The prime factorization of 21031440 is 2 × 2 × 2 × 2 × 3 × 5 × 87631. Since it has a total of 7 prime factors.

Most popular turbo-numbers

6, 9, 81, 34, 75, 181, 9633, 4305, 66072, 84978, 394703, 670462, 3857325, 2727516, 64488528, 2133720, 798358283, 389869087, 4531689516, 7288498509

Basic calculations (n = 21031440)

Multiplication

n×y
n×2 42062880
n×3 63094320
n×4 84125760
n×5 105157200

Division

n÷y
n÷2 10515720
n÷3 7010480
n÷3 5257860
n÷5 4206288

Exponentiation

ny
n2 442321468473600
n3 9.3026574249144E+21
n4 1.9564828147264E+29
n5 4.114765092895E+36

Nth Root

y√n
2√n 4586.0047972064
3√n 276.03003243874
4√n 67.720047232754
5√n 29.145653796461

Divisors of 21031440

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87631, 175262, 262893, 350524, 438155, 525786, 701048, 876310, 1051572, 1314465, 1402096, 1752620, 2103144, 2628930, 3505240, 4206288, 5257860, 7010480, 10515720, 21031440

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031440 can be divided by 40 positive divisors. The sum of these divisors (counting 21031440) is 1, the average is 0.025.

Base conversion 21031440

Base System Value
2 Binary 1010000001110101000010000
3 Ternary 1110120111201020
4 Quaternary 1100032220100
5 Quinary 20341001230
6 Senary 2030435440
8 Octal 120165020
10 Decimal 21031440
12 Duodecimal 7062b80
16 Hexadecimal 140ea10
20 Vigesimal 6b8ic0
36 Base36 ciryo

Cryptographic Hash Functions

md5 a6fb6eadacdccdec49dcfc49b35ab31f
sha1 e32580b06aca068b8e64661c73932bbf724a345c
sha256 e2231b5abee50559a3059cbd1560a397a0354494192a31f1d602e160a389ece9
sha512 75c38be773b9abb249b72997832730016bb6302ab3e271e9ad5b628e98e61b7534a0025493cd2161cf12b5bf7b8b71142fdf1451ca51c063750e189dc614149f
ripemd-160 2a1de8a5f56618748abad891943c1a318138cd70

21031440 as geometric shapes

Circle

Radius = n
Diameter 42062880
Circumference 132144434.79683
Area 1.3895938758817E+15

Sphere

Radius = n
Volume 3.8966880299965E+22
Surface area 5.5583755035268E+15
Circumference 132144434.79683

Square

Length = n
Perimeter 84125760
Area 442321468473600
Diagonal 29742947.684236

Cube

Length = n
Surface area 2653928810841600
Volume 9.3026574249144E+21
Space diagonal 36427522.636336

Equilateral Triangle

Length = n
Perimeter 63094320
Area 1.9153081416869E+14
Altitude 18213761.318168

Triangular Pyramid

Length = n
Surface area 1.9153081416869E+14
Volume 1.0963286913687E+21
Height 9914315.8947453