81124218 (number)

81124218 is an even 8-digits composite number following 81124217 and preceding 81124219. In scientific notation, it is written as 8.1124218 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 48 positive divisors. There are 23119488 positive integers (up to 81124218) that are relatively prime to 81124218.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-four thousand two hundred eighteen

Notation

Scientific notation 8.1124218 × 10^7
Engineering notation 8.1124218 × 10^6

Prime Factorization of 81124218

Prime Factorization 2 × 7 × 3 × 3 × 659 × 977

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 27041406
Product of the distinct prime numbers

The prime factorization of 81124218 is 2 × 7 × 3 × 3 × 659 × 977. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81124218)

Multiplication

n×y
n×2 162248436
n×3 243372654
n×4 324496872
n×5 405621090

Division

n÷y
n÷2 40562109
n÷3 27041406
n÷3 20281054.5
n÷5 16224843.6

Exponentiation

ny
n2 6581138746111524
n3 5.338897343278E+23
n4 4.331138719557E+31
n5 3.5136024167359E+39

Nth Root

y√n
2√n 9006.89835626
3√n 432.89593511016
4√n 94.904680370675
5√n 38.179488406766

Divisors of 81124218

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81124217
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81124218 can be divided by 48 positive divisors. The sum of these divisors (counting 81124218) is 1, the average is 0.020833333333333.

Base conversion 81124218

Base System Value
2 Binary 100110101011101101101111010
3 Ternary 12122122112111200
4 Quaternary 10311131231322
5 Quinary 131231433333
6 Senary 12014435030
8 Octal 465355572
10 Decimal 81124218
12 Duodecimal 23202a76
16 Hexadecimal 4d5db7a
20 Vigesimal 1570aai
36 Base36 1carui

Cryptographic Hash Functions

md5 84d1bf119239dab829f8bfc2b6a852d5
sha1 26b7787755ae7f57ca0b04c9cfe45e124ad40c67
sha256 810113c55a607da89b04e27cd7bdc19777418ae9f3620c7fe53eabfbb7f9da2a
sha512 63b63f2e80c4e17d656ab766e747cc85addee0b7b1e8730bffb5f15a74a1a049bdaf20346872c13c609dfa6f3f192563ef1653b0324bb5e7272e3c4b22e95f86
ripemd-160 8502ab906ba851c5c99991c066f3a433a0936193

81124218 as geometric shapes

Circle

Radius = n
Diameter 162248436
Circumference 509718494.59403
Area 2.0675257137039E+16

Sphere

Radius = n
Volume 2.2363520895883E+24
Surface area 8.2701028548156E+16
Circumference 509718494.59403

Square

Length = n
Perimeter 324496872
Area 6581138746111524
Diagonal 114726969.33251

Cube

Length = n
Surface area 39486832476669144
Volume 5.338897343278E+23
Space diagonal 140511267.30029

Equilateral Triangle

Length = n
Perimeter 243372654
Area 2.8497166699813E+15
Altitude 70255633.650147

Triangular Pyramid

Length = n
Surface area 2.8497166699813E+15
Volume 6.2919508591512E+22
Height 38242323.110837