18996988 (number)

18996988 is an even 8-digits composite number following 18996987 and preceding 18996989. In scientific notation, it is written as 1.8996988 × 10^7. The sum of its digits is 58. It has a total of 4 prime factors and 12 positive divisors. There are 9085472 positive integers (up to 18996988) that are relatively prime to 18996988.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred ninety-six thousand nine hundred eighty-eight

Notation

Scientific notation 1.8996988 × 10^7
Engineering notation 1.8996988 × 10^6

Prime Factorization of 18996988

Prime Factorization 2 × 2 × 23 × 206489

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9498494
Product of the distinct prime numbers

The prime factorization of 18996988 is 2 × 2 × 23 × 206489. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 5, 47, 7, 201, 425, 3995, 5093, 87739, 8727, 566414, 776988, 5107444, 5191086, 77000341, 57962628, 768253464, 589533085, 501873164, 3839509019

Basic calculations (n = 18996988)

Multiplication

n×y
n×2 37993976
n×3 56990964
n×4 75987952
n×5 94984940

Division

n÷y
n÷2 9498494
n÷3 6332329.3333333
n÷3 4749247
n÷5 3799397.6

Exponentiation

ny
n2 360885553072144
n3 6.8557385210849E+21
n4 1.3023838241619E+29
n5 2.4741369878997E+36

Nth Root

y√n
2√n 4358.5534297517
3√n 266.82606373095
4√n 66.019341330792
5√n 28.55860237001

Divisors of 18996988

1, 2, 4, 23, 46, 92, 206489, 412978, 825956, 4749247, 9498494, 18996988

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18996987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18996988 can be divided by 12 positive divisors. The sum of these divisors (counting 18996988) is 1, the average is 0.083333333333333.

Base conversion 18996988

Base System Value
2 Binary 1001000011101111011111100
3 Ternary 1022202010222011
4 Quaternary 1020131323330
5 Quinary 14330400423
6 Senary 1515101004
8 Octal 110357374
10 Decimal 18996988
12 Duodecimal 6441764
16 Hexadecimal 121defc
20 Vigesimal 5iec98
36 Base36 bb664

Cryptographic Hash Functions

md5 b6be6f5c1843ee600643a33d9a3a3069
sha1 ec34a3a530b579f13f201787d1daa2ed236800be
sha256 3720dc803e573f2be755a100ad0f3481601cf72beec8efd895f1c88a3e40e0e9
sha512 269441e8bed89bcf54d2a5ede3555da77dcfcc7b7ca764f2602fddef43985df4a7126c6899dac3c8ad33cf521d95f77388287dafddf23913befa7fc406a92b30
ripemd-160 8495d6e9f32c616feaf46ee4d884e5d3fb16a05b

18996988 as geometric shapes

Circle

Radius = n
Diameter 37993976
Circumference 119361595.88227
Area 1.1337554023181E+15

Sphere

Radius = n
Volume 2.8717250363697E+22
Surface area 4.5350216092725E+15
Circumference 119361595.88227

Square

Length = n
Perimeter 75987952
Area 360885553072144
Diagonal 26865798.073839

Cube

Length = n
Surface area 2165313318432864
Volume 6.8557385210849E+21
Space diagonal 32903748.406776

Equilateral Triangle

Length = n
Perimeter 56990964
Area 1.5626802840964E+14
Altitude 16451874.203388

Triangular Pyramid

Length = n
Surface area 1.5626802840964E+14
Volume 8.0795653305016E+20
Height 8955266.024613