18989840 (number)

18989840 is an even 8-digits composite number following 18989839 and preceding 18989841. In scientific notation, it is written as 1.8989840 × 10^7. The sum of its digits is 47. It has a total of 6 prime factors and 20 positive divisors. There are 7595904 positive integers (up to 18989840) that are relatively prime to 18989840.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8989840 × 10^7
Engineering notation 1.8989840 × 10^6

Prime Factorization of 18989840

Prime Factorization 2 × 2 × 2 × 2 × 5 × 237373

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2373730
Product of the distinct prime numbers

The prime factorization of 18989840 is 2 × 2 × 2 × 2 × 5 × 237373. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 2, 69, 32, 706, 415, 8199, 7823, 44533, 38790, 516566, 171270, 5813718, 4809729, 489491, 70371747, 792152720, 916971464, 1418799222, 3421027499

Basic calculations (n = 18989840)

Multiplication

n×y
n×2 37979680
n×3 56969520
n×4 75959360
n×5 94949200

Division

n÷y
n÷2 9494920
n÷3 6329946.6666667
n÷3 4747460
n÷5 3797968

Exponentiation

ny
n2 360614023225600
n3 6.8480026028104E+21
n4 1.3004247374695E+29
n5 2.4694857696588E+36

Nth Root

y√n
2√n 4357.7333557711
3√n 266.79259330273
4√n 66.013130177042
5√n 28.55645289641

Divisors of 18989840

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 237373, 474746, 949492, 1186865, 1898984, 2373730, 3797968, 4747460, 9494920, 18989840

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18989839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18989840 can be divided by 20 positive divisors. The sum of these divisors (counting 18989840) is 1, the average is 0.05.

Base conversion 18989840

Base System Value
2 Binary 1001000011100001100010000
3 Ternary 1022201210011102
4 Quaternary 1020130030100
5 Quinary 14330133330
6 Senary 1515003532
8 Octal 110341420
10 Decimal 18989840
12 Duodecimal 64395a8
16 Hexadecimal 121c310
20 Vigesimal 5idec0
36 Base36 bb0nk

Cryptographic Hash Functions

md5 e2c8c81346b84e1de095be4ba906d9bd
sha1 1138f3e1e60d548121bb43f80b91b627a9150756
sha256 8d2e05308da9dc9270a6270a634a0eedbff43537334bcfd9681e54bbf1c2fa95
sha512 5234dac169042913828772b757592008147cf8b996fdfbed0c773279dd43084dcc39edae3c7613084831df028048794765168abde2655d3ed63e86124e4a4394
ripemd-160 dfff7cd308530e1a0a04e00bd89314eb899d632d

18989840 as geometric shapes

Circle

Radius = n
Diameter 37979680
Circumference 119316683.67369
Area 1.132902366147E+15

Sphere

Radius = n
Volume 2.8684846225004E+22
Surface area 4.531609464588E+15
Circumference 119316683.67369

Square

Length = n
Perimeter 75959360
Area 360614023225600
Diagonal 26855689.275295

Cube

Length = n
Surface area 2163684139353600
Volume 6.8480026028104E+21
Space diagonal 32891367.707604

Equilateral Triangle

Length = n
Perimeter 56969520
Area 1.5615045253714E+14
Altitude 16445683.853802

Triangular Pyramid

Length = n
Surface area 1.5615045253714E+14
Volume 8.070448463384E+20
Height 8951896.4250984