81127788 (number)

81127788 is an even 8-digits composite number following 81127787 and preceding 81127789. In scientific notation, it is written as 8.1127788 × 10^7. The sum of its digits is 42. It has a total of 6 prime factors and 48 positive divisors. There are 23126400 positive integers (up to 81127788) that are relatively prime to 81127788.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-seven thousand seven hundred eighty-eight

Notation

Scientific notation 8.1127788 × 10^7
Engineering notation 8.1127788 × 10^6

Prime Factorization of 81127788

Prime Factorization 2 × 2 × 3 × 7 × 601 × 1607

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40563894
Product of the distinct prime numbers

The prime factorization of 81127788 is 2 × 2 × 3 × 7 × 601 × 1607. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81127788)

Multiplication

n×y
n×2 162255576
n×3 243383364
n×4 324511152
n×5 405638940

Division

n÷y
n÷2 40563894
n÷3 27042596
n÷3 20281947
n÷5 16225557.6

Exponentiation

ny
n2 6581717985772944
n3 5.3396022142557E+23
n4 4.3319011644247E+31
n5 3.514375593044E+39

Nth Root

y√n
2√n 9007.0965355102
3√n 432.90228510796
4√n 94.905724461226
5√n 38.179824430651

Divisors of 81127788

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 -81127787
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 81127788 can be divided by 48 positive divisors. The sum of these divisors (counting 81127788) is 1, the average is 0.020833333333333.

Base conversion 81127788

Base System Value
2 Binary 100110101011110100101101100
3 Ternary 12122122201101220
4 Quaternary 10311132211230
5 Quinary 131232042123
6 Senary 12014503340
8 Octal 465364554
10 Decimal 81127788
12 Duodecimal 23204b50
16 Hexadecimal 4d5e96c
20 Vigesimal 1570j98
36 Base36 1caulo

Cryptographic Hash Functions

md5 fea33fa66746c9860b7186d00c8cb6a1
sha1 0e2d46d0f608847d3deb9da197a7f20c618923a3
sha256 a91638209dcc0b313d39e94666b13d65963cf1de39bd47f1e75563cd1fc88f44
sha512 44ce5daa4ad9acd6424deab681428b78dfa9104ea0f725f8b1dafe159481c78d4d4e1b807a7af54c099d4717ca481d91e3a773580dde843ade43259214d6cabb
ripemd-160 ccead7fede884c666bd4115e63c2752ee5584a65

81127788 as geometric shapes

Circle

Radius = n
Diameter 162255576
Circumference 509740925.56558
Area 2.0677076872104E+16

Sphere

Radius = n
Volume 2.236647345253E+24
Surface area 8.2708307488416E+16
Circumference 509740925.56558

Square

Length = n
Perimeter 324511152
Area 6581717985772944
Diagonal 114732018.07493

Cube

Length = n
Surface area 39490307914637664
Volume 5.3396022142557E+23
Space diagonal 140517450.72168

Equilateral Triangle

Length = n
Perimeter 243383364
Area 2.8499674881122E+15
Altitude 70258725.360838

Triangular Pyramid

Length = n
Surface area 2.8499674881122E+15
Volume 6.2927815575649E+22
Height 38244006.024976