18081808 (number)

18081808 is an even 8-digits composite number following 18081807 and preceding 18081809. In scientific notation, it is written as 1.8081808 × 10^7. The sum of its digits is 34. It has a total of 7 prime factors and 40 positive divisors. There are 8773632 positive integers (up to 18081808) that are relatively prime to 18081808.

Interesting facts

Basic properties

Name

Name eighteen million eighty-one thousand eight hundred eight

Notation

Scientific notation 1.8081808 × 10^7
Engineering notation 1.8081808 × 10^6

Prime Factorization of 18081808

Prime Factorization 2 × 2 × 2 × 2 × 137 × 113 × 73

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2260226
Product of the distinct prime numbers

The prime factorization of 18081808 is 2 × 2 × 2 × 2 × 137 × 113 × 73. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 6, 53, 79, 487, 531, 614, 4820, 82818, 25307, 612430, 312211, 4162255, 553939, 55183069, 45480881, 887581901, 673573507, 4914091529, 7139784881

Basic calculations (n = 18081808)

Multiplication

n×y
n×2 36163616
n×3 54245424
n×4 72327232
n×5 90409040

Division

n÷y
n÷2 9040904
n÷3 6027269.3333333
n÷3 4520452
n÷5 3616361.6

Exponentiation

ny
n2 326951780548864
n3 5.9118793211427E+21
n4 1.0689746680407E+29
n5 1.9328994704376E+36

Nth Root

y√n
2√n 4252.2709226953
3√n 262.47057206009
4√n 65.209438907993
5√n 28.277979199166

Divisors of 18081808

1, 2, 4, 8, 16, 73, 113, 137, 146, 226, 274, 292, 452, 548, 584, 904, 1096, 1168, 1808, 2192, 8249, 10001, 15481, 16498, 20002, 30962, 32996, 40004, 61924, 65992, 80008, 123848, 131984, 160016, 247696, 1130113, 2260226, 4520452, 9040904, 18081808

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18081807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18081808 can be divided by 40 positive divisors. The sum of these divisors (counting 18081808) is 1, the average is 0.025.

Base conversion 18081808

Base System Value
2 Binary 1000100111110100000010000
3 Ternary 1021000122120121
4 Quaternary 1010332200100
5 Quinary 14112104213
6 Senary 1443320024
8 Octal 104764020
10 Decimal 18081808
12 Duodecimal 6080014
16 Hexadecimal 113e810
20 Vigesimal 5d04a8
36 Base36 ark0g

Cryptographic Hash Functions

md5 126f9e7a57bfe205c676e155f2ff760d
sha1 91a72fc91ae20acce46a1f6ce314829274d080bc
sha256 3c81543087d9803d2959cba08ee936e899f03ba388cba96fc6f5832993e82daf
sha512 ee2c555910b4a17fae9165d69167057a06a0e84cce4a47c36dbbabbe6a16b075a9aaedaa155cd2d6986bb6e578a645fd021566297e3161932af14c6e15dc5846
ripemd-160 9edd7a7c81b2b9d7cf686dc72f6f772d5f9f9fef

18081808 as geometric shapes

Circle

Radius = n
Diameter 36163616
Circumference 113611350.35284
Area 1.0271493118504E+15

Sphere

Radius = n
Volume 2.4763622192282E+22
Surface area 4.1085972474017E+15
Circumference 113611350.35284

Square

Length = n
Perimeter 72327232
Area 326951780548864
Diagonal 25571538.105826

Cube

Length = n
Surface area 1961710683293184
Volume 5.9118793211427E+21
Space diagonal 31318610.148705

Equilateral Triangle

Length = n
Perimeter 54245424
Area 1.4157427388394E+14
Altitude 15659305.074353

Triangular Pyramid

Length = n
Surface area 1.4157427388394E+14
Volume 6.9672165958942E+20
Height 8523846.0352754