18997688 (number)

18997688 is an even 8-digits composite number following 18997687 and preceding 18997689. In scientific notation, it is written as 1.8997688 × 10^7. The sum of its digits is 56. It has a total of 5 prime factors and 16 positive divisors. There are 9460000 positive integers (up to 18997688) that are relatively prime to 18997688.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8997688 × 10^7
Engineering notation 1.8997688 × 10^6

Prime Factorization of 18997688

Prime Factorization 2 × 2 × 2 × 251 × 9461

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 4749422
Product of the distinct prime numbers

The prime factorization of 18997688 is 2 × 2 × 2 × 251 × 9461. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 2, 55, 54, 438, 831, 5684, 6736, 56228, 1665, 977575, 656374, 540416, 65614, 97749050, 55829281, 761697677, 529984563, 1772601536, 8718608233

Basic calculations (n = 18997688)

Multiplication

n×y
n×2 37995376
n×3 56993064
n×4 75990752
n×5 94988440

Division

n÷y
n÷2 9498844
n÷3 6332562.6666667
n÷3 4749422
n÷5 3799537.6

Exponentiation

ny
n2 360912149345344
n3 6.8564964086722E+21
n4 1.3025757954508E+29
n5 2.4745928558325E+36

Nth Root

y√n
2√n 4358.633730884
3√n 266.82934102155
4√n 66.01994949168
5√n 28.55881283208

Divisors of 18997688

1, 2, 4, 8, 251, 502, 1004, 2008, 9461, 18922, 37844, 75688, 2374711, 4749422, 9498844, 18997688

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 -18997687
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 18997688 can be divided by 16 positive divisors. The sum of these divisors (counting 18997688) is 1, the average is 0.0625.

Base conversion 18997688

Base System Value
2 Binary 1001000011110000110111000
3 Ternary 1022202011221002
4 Quaternary 1020132012320
5 Quinary 14330411223
6 Senary 1515104132
8 Octal 110360670
10 Decimal 18997688
12 Duodecimal 6442048
16 Hexadecimal 121e1b8
20 Vigesimal 5iee48
36 Base36 bb6pk

Cryptographic Hash Functions

md5 e84ad9e8b3305453bbd4433f2b8d5282
sha1 69429a8ac946ec371ed7d55334d67bb9d8052961
sha256 32dab11b3a7fa069da75c378656b0c14be581ccb6b6655c801a1a982fee98b63
sha512 f45405a5bbcaa199570e68a1b2d5b5e54c2382ea7b92214f899a19472d15c3dadc56bfb052dcdee9ee852dc52bd7da2838590c43a24e3504dabf74aa37d6e414
ripemd-160 47689339200bb1a7f43ce7297deaef2d1f4fa16e

18997688 as geometric shapes

Circle

Radius = n
Diameter 37995376
Circumference 119365994.11198
Area 1.1338389569746E+15

Sphere

Radius = n
Volume 2.8720424995799E+22
Surface area 4.5353558278985E+15
Circumference 119365994.11198

Square

Length = n
Perimeter 75990752
Area 360912149345344
Diagonal 26866788.023333

Cube

Length = n
Surface area 2165472896072064
Volume 6.8564964086722E+21
Space diagonal 32904960.842342

Equilateral Triangle

Length = n
Perimeter 56993064
Area 1.5627954493376E+14
Altitude 16452480.421171

Triangular Pyramid

Length = n
Surface area 1.5627954493376E+14
Volume 8.0804585095889E+20
Height 8955596.0077775