18987070 (number)

18987070 is an even 8-digits composite number following 18987069 and preceding 18987071. In scientific notation, it is written as 1.8987070 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 7543264 positive integers (up to 18987070) that are relatively prime to 18987070.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred eighty-seven thousand seventy

Notation

Scientific notation 1.8987070 × 10^7
Engineering notation 1.8987070 × 10^6

Prime Factorization of 18987070

Prime Factorization 2 × 5 × 149 × 12743

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18987070
Product of the distinct prime numbers

The prime factorization of 18987070 is 2 × 5 × 149 × 12743. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 24, 40, 210, 175, 1604, 4410, 65432, 48298, 631891, 972099, 878097, 7869578, 70372646, 10577432, 975430491, 411927777, 5535709331, 925410389

Basic calculations (n = 18987070)

Multiplication

n×y
n×2 37974140
n×3 56961210
n×4 75948280
n×5 94935350

Division

n÷y
n÷2 9493535
n÷3 6329023.3333333
n÷3 4746767.5
n÷5 3797414

Exponentiation

ny
n2 360508827184900
n3 6.8450063373776E+21
n4 1.2996661447823E+29
n5 2.4676852067612E+36

Nth Root

y√n
2√n 4357.4155184008
3√n 266.77962055135
4√n 66.010722753207
5√n 28.555619756265

Divisors of 18987070

1, 2, 5, 10, 149, 298, 745, 1490, 12743, 25486, 63715, 127430, 1898707, 3797414, 9493535, 18987070

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 -18987069
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 18987070 can be divided by 16 positive divisors. The sum of these divisors (counting 18987070) is 1, the average is 0.0625.

Base conversion 18987070

Base System Value
2 Binary 1001000011011100000111110
3 Ternary 1022201122100211
4 Quaternary 1020123200332
5 Quinary 14330041240
6 Senary 1514543034
8 Octal 110334076
10 Decimal 18987070
12 Duodecimal 6437a7a
16 Hexadecimal 121b83e
20 Vigesimal 5id7da
36 Base36 bayim

Cryptographic Hash Functions

md5 a36e303b2e61786f68f1fc1b48193140
sha1 6c2a519cc9cef81393f9024e780cd1607bbcf0ea
sha256 ad12edb21dbbdbbe66028c2fb928bc87323261aabec7ffb9e3a45d0d2a964fa9
sha512 dba79fac69140993398600dd18c189d4ee0559b3048400371a26ee30e36b5e6af29cc4823a9c3e5d3e5cf853b827e1bef0ff3423ad27f4ef82c4ec750b7a4016
ripemd-160 a6936c4e1af27df22bff035482c85de62810e0f7

18987070 as geometric shapes

Circle

Radius = n
Diameter 37974140
Circumference 119299279.25039
Area 1.1325718830384E+15

Sphere

Radius = n
Volume 2.8672295497708E+22
Surface area 4.5302875321534E+15
Circumference 119299279.25039

Square

Length = n
Perimeter 75948280
Area 360508827184900
Diagonal 26851771.903727

Cube

Length = n
Surface area 2163052963109400
Volume 6.8450063373776E+21
Space diagonal 32886569.926867

Equilateral Triangle

Length = n
Perimeter 56961210
Area 1.5610490131533E+14
Altitude 16443284.963433

Triangular Pyramid

Length = n
Surface area 1.5610490131533E+14
Volume 8.0669173307077E+20
Height 8950590.6345758