18887946 (number)

18887946 is an even 8-digits composite number following 18887945 and preceding 18887947. In scientific notation, it is written as 1.8887946 × 10^7. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 4905840 positive integers (up to 18887946) that are relatively prime to 18887946.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred eighty-seven thousand nine hundred forty-six

Notation

Scientific notation 1.8887946 × 10^7
Engineering notation 1.8887946 × 10^6

Prime Factorization of 18887946

Prime Factorization 2 × 21 × 11 × 40883

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18887946
Product of the distinct prime numbers

The prime factorization of 18887946 is 2 × 21 × 11 × 40883. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 35, 16, 794, 502, 2585, 1786, 21716, 2573, 696495, 6653, 9346160, 8017419, 13835954, 36422278, 529916818, 308232944, 2824551320, 8789390935

Basic calculations (n = 18887946)

Multiplication

n×y
n×2 37775892
n×3 56663838
n×4 75551784
n×5 94439730

Division

n÷y
n÷2 9443973
n÷3 6295982
n÷3 4721986.5
n÷5 3777589.2

Exponentiation

ny
n2 356754504098916
n3 6.7383598086771E+21
n4 1.2727377619486E+29
n5 2.4039402119847E+36

Nth Root

y√n
2√n 4346.0264610331
3√n 266.31455993559
4√n 65.924399587961
5√n 28.525741773999

Divisors of 18887946

1, 2, 11, 21, 22, 42, 231, 462, 40883, 81766, 449713, 858543, 899426, 1717086, 9443973, 18887946

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18887945
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18887946 can be divided by 16 positive divisors. The sum of these divisors (counting 18887946) is 1, the average is 0.0625.

Base conversion 18887946

Base System Value
2 Binary 1001000000011010100001010
3 Ternary 1022112121101120
4 Quaternary 1020003110022
5 Quinary 14313403241
6 Senary 1512500110
8 Octal 110032412
10 Decimal 18887946
12 Duodecimal 63aa636
16 Hexadecimal 120350a
20 Vigesimal 5i0jh6
36 Base36 b8u16

Cryptographic Hash Functions

md5 2a411254ee671990ee5d8de1207126e7
sha1 04a9df002c06c8d1f9aeac1d51998e1b4683d026
sha256 8bfa121ef5a72685c7ed63b2d19742dc768d0099d423809f049dd1670f2b5e9d
sha512 2b251950f50b42fb6f167b14db4fc59214d09275ddca0efe661d517092ee9c87c49c0cb92ac796e582eba94ea24a2c11b9166aa87472d394b340a8cc14071e8f
ripemd-160 14e5241c46ed6ffa4ceb36d52a7f05d84a103ac5

18887946 as geometric shapes

Circle

Radius = n
Diameter 37775892
Circumference 118676464.79
Area 1.1207773292122E+15

Sphere

Radius = n
Volume 2.8225575562913E+22
Surface area 4.4831093168489E+15
Circumference 118676464.79

Square

Length = n
Perimeter 75551784
Area 356754504098916
Diagonal 26711589.398571

Cube

Length = n
Surface area 2140527024593496
Volume 6.7383598086771E+21
Space diagonal 32714882.122617

Equilateral Triangle

Length = n
Perimeter 56663838
Area 1.5447923173209E+14
Altitude 16357441.061309

Triangular Pyramid

Length = n
Surface area 1.5447923173209E+14
Volume 7.9412331913174E+20
Height 8903863.1328569