18946988 (number)

18946988 is an even 8-digits composite number following 18946987 and preceding 18946989. In scientific notation, it is written as 1.8946988 × 10^7. The sum of its digits is 53. It has a total of 4 prime factors and 12 positive divisors. There are 9462000 positive integers (up to 18946988) that are relatively prime to 18946988.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8946988 × 10^7
Engineering notation 1.8946988 × 10^6

Prime Factorization of 18946988

Prime Factorization 2 × 2 × 997 × 4751

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9473494
Product of the distinct prime numbers

The prime factorization of 18946988 is 2 × 2 × 997 × 4751. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 5, 87, 944, 515, 2924, 7118, 87220, 97986, 881652, 567000, 9262524, 1013273, 33151179, 92753230, 733380923, 218126173, 856521808, 7392434168

Basic calculations (n = 18946988)

Multiplication

n×y
n×2 37893976
n×3 56840964
n×4 75787952
n×5 94734940

Division

n÷y
n÷2 9473494
n÷3 6315662.6666667
n÷3 4736747
n÷5 3789397.6

Exponentiation

ny
n2 358988354272144
n3 6.8017480405341E+21
n4 1.2887263850302E+29
n5 2.4417483352451E+36

Nth Root

y√n
2√n 4352.8138025879
3√n 266.59176299014
4√n 65.975857725292
5√n 28.543553291498

Divisors of 18946988

1, 2, 4, 997, 1994, 3988, 4751, 9502, 19004, 4736747, 9473494, 18946988

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 -18946987
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 18946988 can be divided by 12 positive divisors. The sum of these divisors (counting 18946988) is 1, the average is 0.083333333333333.

Base conversion 18946988

Base System Value
2 Binary 1001000010001101110101100
3 Ternary 1022122121101022
4 Quaternary 1020101232230
5 Quinary 14322300423
6 Senary 1514033312
8 Octal 110215654
10 Decimal 18946988
12 Duodecimal 6418838
16 Hexadecimal 1211bac
20 Vigesimal 5i8798
36 Base36 ba3l8

Cryptographic Hash Functions

md5 990bd4b403213f8f167e037d48a8c116
sha1 abdd722807a9496575129d2dcbecd773e79ebde5
sha256 7ef5f586bcb4e8d3b18047a974dae95d4f4802d1129327474288e876b492484b
sha512 d4453e071f2fa1bea387e9a2c1d8a7efacdbfae8146a566051a1811aacfcc8f2136c21089967b8c6e4eb24938c4821bb78e9038a7dcecc7cd0c9a24aec6738b5
ripemd-160 aeae69076fc69d4d78b8f87a50ef789d4b9db372

18946988 as geometric shapes

Circle

Radius = n
Diameter 37893976
Circumference 119047436.61691
Area 1.1277951765057E+15

Sphere

Radius = n
Volume 2.8491095567614E+22
Surface area 4.5111807060226E+15
Circumference 119047436.61691

Square

Length = n
Perimeter 75787952
Area 358988354272144
Diagonal 26795087.39572

Cube

Length = n
Surface area 2153930125632864
Volume 6.8017480405341E+21
Space diagonal 32817145.866398

Equilateral Triangle

Length = n
Perimeter 56840964
Area 1.5544651723122E+14
Altitude 16408572.933199

Triangular Pyramid

Length = n
Surface area 1.5544651723122E+14
Volume 8.0159369389732E+20
Height 8931695.7985734