18781368 (number)

18781368 is an even 8-digits composite number following 18781367 and preceding 18781369. In scientific notation, it is written as 1.8781368 × 10^7. The sum of its digits is 42. It has a total of 6 prime factors and 32 positive divisors. There are 6114528 positive integers (up to 18781368) that are relatively prime to 18781368.

Interesting facts

Basic properties

Name

Name eighteen million seven hundred eighty-one thousand three hundred sixty-eight

Notation

Scientific notation 1.8781368 × 10^7
Engineering notation 1.8781368 × 10^6

Prime Factorization of 18781368

Prime Factorization 2 × 2 × 2 × 3 × 43 × 18199

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 4695342
Product of the distinct prime numbers

The prime factorization of 18781368 is 2 × 2 × 2 × 3 × 43 × 18199. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 2, 63, 62, 639, 22, 2417, 5711, 85340, 33930, 214061, 73312, 2630507, 3144156, 48088601, 26183994, 907347715, 521679472, 7717163182, 2728682079

Basic calculations (n = 18781368)

Multiplication

n×y
n×2 37562736
n×3 56344104
n×4 75125472
n×5 93906840

Division

n÷y
n÷2 9390684
n÷3 6260456
n÷3 4695342
n÷5 3756273.6

Exponentiation

ny
n2 352739783951424
n3 6.6249356906322E+21
n4 1.244253551821E+29
n5 2.3368783842057E+36

Nth Root

y√n
2√n 4333.7475699445
3√n 265.81270853002
4√n 65.831205138175
5√n 28.493476732821

Divisors of 18781368

1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 18199, 36398, 54597, 72796, 109194, 145592, 218388, 436776, 782557, 1565114, 2347671, 3130228, 4695342, 6260456, 9390684, 18781368

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18781367
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18781368 can be divided by 32 positive divisors. The sum of these divisors (counting 18781368) is 1, the average is 0.03125.

Base conversion 18781368

Base System Value
2 Binary 1000111101001010010111000
3 Ternary 1022100012012020
4 Quaternary 1013221102320
5 Quinary 14302000433
6 Senary 1510314440
8 Octal 107512270
10 Decimal 18781368
12 Duodecimal 6358a20
16 Hexadecimal 11e94b8
20 Vigesimal 5h7d88
36 Base36 b6jso

Cryptographic Hash Functions

md5 432a37a3b39f2045fea91c425902599e
sha1 6d2eeb72f2649fb9a352f315e0d4461c0e8bdee9
sha256 0be5194b548c3314446b9dbb87af5d44a17b5d289b695254adb92c1829260887
sha512 ea22ebcb209740c180a5170558c988a9afc10dc1c9040354bf6374b7d9e8789ff6ab027c1a456a3fcf588e33144cb0375353266a8fc12926e47121a0c31c45c3
ripemd-160 44556b786707f9420e2e420a85fadde42f338005

18781368 as geometric shapes

Circle

Radius = n
Diameter 37562736
Circumference 118006815.46633
Area 1.1081647138906E+15

Sphere

Radius = n
Volume 2.775046572826E+22
Surface area 4.4326588555626E+15
Circumference 118006815.46633

Square

Length = n
Perimeter 75125472
Area 352739783951424
Diagonal 26560865.34552

Cube

Length = n
Surface area 2116438703708544
Volume 6.6249356906322E+21
Space diagonal 32530283.611648

Equilateral Triangle

Length = n
Perimeter 56344104
Area 1.5274080691368E+14
Altitude 16265141.805824

Triangular Pyramid

Length = n
Surface area 1.5274080691368E+14
Volume 7.8075615862847E+20
Height 8853621.78184