18809905 (number)

18809905 is an odd 8-digits composite number following 18809904 and preceding 18809906. In scientific notation, it is written as 1.8809905 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 24 positive divisors. There are 13395456 positive integers (up to 18809905) that are relatively prime to 18809905.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred nine thousand nine hundred five

Notation

Scientific notation 1.8809905 × 10^7
Engineering notation 1.8809905 × 10^6

Prime Factorization of 18809905

Prime Factorization 17 × 5 × 19 × 19 × 613

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 989995
Product of the distinct prime numbers

The prime factorization of 18809905 is 17 × 5 × 19 × 19 × 613. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 3, 66, 48, 125, 274, 8307, 8528, 12921, 10464, 387966, 968989, 8863720, 7389786, 62690118, 7035394, 364323480, 481198614, 2654348426, 1499486347

Basic calculations (n = 18809905)

Multiplication

n×y
n×2 37619810
n×3 56429715
n×4 75239620
n×5 94049525

Division

n÷y
n÷2 9404952.5
n÷3 6269968.3333333
n÷3 4702476.25
n÷5 3761981

Exponentiation

ny
n2 353812526109025
n3 6.6551800039208E+21
n4 1.2518330363165E+29
n5 2.3546860488975E+36

Nth Root

y√n
2√n 4337.0387362808
3√n 265.94726845881
4√n 65.856197402225
5√n 28.502130251612

Divisors of 18809905

1, 5, 17, 19, 85, 95, 323, 361, 613, 1615, 1805, 3065, 6137, 10421, 11647, 30685, 52105, 58235, 197999, 221293, 989995, 1106465, 3761981, 18809905

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18809904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18809905 can be divided by 24 positive divisors. The sum of these divisors (counting 18809905) is 1, the average is 0.041666666666667.

Base conversion 18809905

Base System Value
2 Binary 1000111110000010000110001
3 Ternary 1022101122100011
4 Quaternary 1013300100301
5 Quinary 14303404110
6 Senary 1511054521
8 Octal 107602061
10 Decimal 18809905
12 Duodecimal 6371441
16 Hexadecimal 11f0431
20 Vigesimal 5hb4f5
36 Base36 b75td

Cryptographic Hash Functions

md5 f0654a617236c098ccb08511734eb82f
sha1 d1e90623757e5b774b0db265436901f7717e6a43
sha256 94bce7084f01446d0a4f9c1b72da95608d4bb972bffef8947874ef055c963f23
sha512 2f94735c4996a2d38edb8aeb2c996024f0cfb7ad1bcdcd0172841d69669668b5c8d3666ffeca08d147f5aada05ba15a8f42ebeeaa3eb4a179092ed5ffbdb849d
ripemd-160 2aba6e9315231ffe8f6151c072442482ced42e00

18809905 as geometric shapes

Circle

Radius = n
Diameter 37619810
Circumference 118186118.72544
Area 1.1115348327722E+15

Sphere

Radius = n
Volume 2.7877152811514E+22
Surface area 4.4461393310886E+15
Circumference 118186118.72544

Square

Length = n
Perimeter 75239620
Area 353812526109025
Diagonal 26601222.757949

Cube

Length = n
Surface area 2122875156654150
Volume 6.6551800039208E+21
Space diagonal 32579711.145544

Equilateral Triangle

Length = n
Perimeter 56429715
Area 1.5320531789378E+14
Altitude 16289855.572772

Triangular Pyramid

Length = n
Surface area 1.5320531789378E+14
Volume 7.8432048513158E+20
Height 8867074.2526498