18405940 (number)

18405940 is an even 8-digits composite number following 18405939 and preceding 18405941. In scientific notation, it is written as 1.8405940 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors. There are 6105600 positive integers (up to 18405940) that are relatively prime to 18405940.

Interesting facts

Basic properties

Name

Name eighteen million four hundred five thousand nine hundred forty

Notation

Scientific notation 1.8405940 × 10^7
Engineering notation 1.8405940 × 10^6

Prime Factorization of 18405940

Prime Factorization 2 × 2 × 35 × 31 × 4241

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9202970
Product of the distinct prime numbers

The prime factorization of 18405940 is 2 × 2 × 35 × 31 × 4241. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 1, 98, 37, 189, 874, 2088, 4071, 15210, 56059, 539364, 360030, 2739905, 9717954, 16178574, 66935701, 709404999, 392072232, 6721885100, 1492893233

Basic calculations (n = 18405940)

Multiplication

n×y
n×2 36811880
n×3 55217820
n×4 73623760
n×5 92029700

Division

n÷y
n÷2 9202970
n÷3 6135313.3333333
n÷3 4601485
n÷5 3681188

Exponentiation

ny
n2 338778627283600
n3 6.2355390870643E+21
n4 1.1477095830416E+29
n5 2.1124673722889E+36

Nth Root

y√n
2√n 4290.2144468546
3√n 264.0296301301
4√n 65.499728601381
5√n 28.378641413294

Divisors of 18405940

1, 2, 4, 31, 35, 62, 70, 124, 140, 1085, 2170, 4241, 4340, 8482, 16964, 131471, 148435, 262942, 296870, 525884, 593740, 4601485, 9202970, 18405940

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18405939
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18405940 can be divided by 24 positive divisors. The sum of these divisors (counting 18405940) is 1, the average is 0.041666666666667.

Base conversion 18405940

Base System Value
2 Binary 1000110001101101000110100
3 Ternary 1021122010012111
4 Quaternary 1012031220310
5 Quinary 14202442230
6 Senary 1454300404
8 Octal 106155064
10 Decimal 18405940
12 Duodecimal 61b7704
16 Hexadecimal 118da34
20 Vigesimal 5f0eh0
36 Base36 ayi44

Cryptographic Hash Functions

md5 c1d687e31e2be6bc69eea923cd83edc3
sha1 c4786c777412725f2a54ebee17ae3f6737c415e0
sha256 eff7c5e15ff73bed8f2f00c6f7ed136342026566a752c1d077103fbc109bfb1a
sha512 cf3e65106fa83d215102031c02c57d803871596f9a2fbcb52ac8cfde87c0851001bfa29b1d69117bcc4089a959a531a80d849f8c67c2c3a27133325373eecc18
ripemd-160 1b8a1116936136cbaa456f5ba25e3b0bcc194679

18405940 as geometric shapes

Circle

Radius = n
Diameter 36811880
Circumference 115647931.77283
Area 1.0643044466674E+15

Sphere

Radius = n
Volume 2.6119365049458E+22
Surface area 4.2572177866696E+15
Circumference 115647931.77283

Square

Length = n
Perimeter 73623760
Area 338778627283600
Diagonal 26029929.976225

Cube

Length = n
Surface area 2032671763701600
Volume 6.2355390870643E+21
Space diagonal 31880023.241064

Equilateral Triangle

Length = n
Perimeter 55217820
Area 1.4669544874341E+14
Altitude 15940011.620532

Triangular Pyramid

Length = n
Surface area 1.4669544874341E+14
Volume 7.3486532880282E+20
Height 8676643.3254085