20181440 (number)

20181440 is an even 8-digits composite number following 20181439 and preceding 20181441. In scientific notation, it is written as 2.0181440 × 10^7. The sum of its digits is 20. It has a total of 8 prime factors and 28 positive divisors. There are 8072448 positive integers (up to 20181440) that are relatively prime to 20181440.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0181440 × 10^7
Engineering notation 2.0181440 × 10^6

Prime Factorization of 20181440

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 5 × 63067

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 630670
Product of the distinct prime numbers

The prime factorization of 20181440 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 63067. Since it has a total of 8 prime factors.

Most popular turbo-numbers

4, 5, 75, 66, 979, 280, 4828, 9743, 17315, 60997, 969885, 840105, 103136, 7934232, 25468356, 12729325, 496563329, 918760847, 7722686944, 6447500321

Basic calculations (n = 20181440)

Multiplication

n×y
n×2 40362880
n×3 60544320
n×4 80725760
n×5 100907200

Division

n÷y
n÷2 10090720
n÷3 6727146.6666667
n÷3 5045360
n÷5 4036288

Exponentiation

ny
n2 407290520473600
n3 8.2197092015067E+21
n4 1.6588556806766E+29
n5 3.3478096388233E+36

Nth Root

y√n
2√n 4492.3757634463
3√n 272.26013176215
4√n 67.025187530109
5√n 28.906161862437

Divisors of 20181440

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63067, 126134, 252268, 315335, 504536, 630670, 1009072, 1261340, 2018144, 2522680, 4036288, 5045360, 10090720, 20181440

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20181439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20181440 can be divided by 28 positive divisors. The sum of these divisors (counting 20181440) is 1, the average is 0.035714285714286.

Base conversion 20181440

Base System Value
2 Binary 1001100111111000111000000
3 Ternary 1101222022201202
4 Quaternary 1030333013000
5 Quinary 20131301230
6 Senary 2000320332
8 Octal 114770700
10 Decimal 20181440
12 Duodecimal 69130a8
16 Hexadecimal 133f1c0
20 Vigesimal 662dc0
36 Base36 c0k3k

Cryptographic Hash Functions

md5 5a2091d76caf45161e5a0aaa6c933d72
sha1 1316da195a3a549b5a99de266f8103df6ad010d3
sha256 0b724ce5eb7fbeace29a991f55660870f4e8226164f446787ee057412ee15270
sha512 dd78535f2e098f55d6d24de798c767cd993e46341dddf0548d3a5bf6139df0990eb4997c90125a1dcd3bd4ae2ec313d0e0b54a39e1d8eeff64a20c9dd18217ca
ripemd-160 f7a2db35cf5a32a54300e0bede7d5d45036fb75c

20181440 as geometric shapes

Circle

Radius = n
Diameter 40362880
Circumference 126803727.28573
Area 1.2795409069966E+15

Sphere

Radius = n
Volume 3.4430637389464E+22
Surface area 5.1181636279865E+15
Circumference 126803727.28573

Square

Length = n
Perimeter 80725760
Area 407290520473600
Diagonal 28540866.156219

Cube

Length = n
Surface area 2443743122841600
Volume 8.2197092015067E+21
Space diagonal 34955279.449903

Equilateral Triangle

Length = n
Perimeter 60544320
Area 1.7636196872536E+14
Altitude 17477639.724951

Triangular Pyramid

Length = n
Surface area 1.7636196872536E+14
Volume 9.6870201929448E+20
Height 9513622.052073