81268612 (number)

81268612 is an even 8-digits composite number following 81268611 and preceding 81268613. In scientific notation, it is written as 8.1268612 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 40549896 positive integers (up to 81268612) that are relatively prime to 81268612.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred sixty-eight thousand six hundred twelve

Notation

Scientific notation 8.1268612 × 10^7
Engineering notation 8.1268612 × 10^6

Prime Factorization of 81268612

Prime Factorization 2 × 2 × 487 × 41719

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40634306
Product of the distinct prime numbers

The prime factorization of 81268612 is 2 × 2 × 487 × 41719. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 77, 9, 100, 774, 4680, 7043, 51424, 80790, 15673, 182943, 1708970, 896547, 49939836, 93544228, 617614747, 140598634, 968730778, 1132324126

Basic calculations (n = 81268612)

Multiplication

n×y
n×2 162537224
n×3 243805836
n×4 325074448
n×5 406343060

Division

n÷y
n÷2 40634306
n÷3 27089537.333333
n÷3 20317153
n÷5 16253722.4

Exponentiation

ny
n2 6604587296406544
n3 5.3674564241179E+23
n4 4.3620573355855E+31
n5 3.5449834512745E+39

Nth Root

y√n
2√n 9014.9105375483
3√n 433.15262182189
4√n 94.946882716329
5√n 38.19306996943

Divisors of 81268612

1, 2, 4, 487, 974, 1948, 41719, 83438, 166876, 20317153, 40634306, 81268612

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81268611
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81268612 can be divided by 12 positive divisors. The sum of these divisors (counting 81268612) is 1, the average is 0.083333333333333.

Base conversion 81268612

Base System Value
2 Binary 100110110000000111110000100
3 Ternary 12122220212120121
4 Quaternary 10312000332010
5 Quinary 131301043422
6 Senary 12021511324
8 Octal 466007604
10 Decimal 81268612
12 Duodecimal 23272544
16 Hexadecimal 4d80f84
20 Vigesimal 157ibac
36 Base36 1cdv9g

Cryptographic Hash Functions

md5 4121e25cb7147fa2494a81362b0f5778
sha1 e5a8200d225baf38bf1956bd5c42a1a211659620
sha256 513607d2dddcaff1f20f4ec11bbd3e593df52e9e348e35d8909709cb2b621c5f
sha512 c63340f122a07e04a38a00afd73829c2db4df96cb76f7fd065f88d80f151a61934bfb7df98a9c4c59bc94fb233587df346db9eb6613c59d8bc2760e1e292c49c
ripemd-160 27eab3798a268002a4e0858f7fd1ccfe3a3e0ebd

81268612 as geometric shapes

Circle

Radius = n
Diameter 162537224
Circumference 510625748.85328
Area 2.0748922930383E+16

Sphere

Radius = n
Volume 2.2483148893963E+24
Surface area 8.2995691721533E+16
Circumference 510625748.85328

Square

Length = n
Perimeter 325074448
Area 6604587296406544
Diagonal 114931173.28564

Cube

Length = n
Surface area 39627523778439264
Volume 5.3674564241179E+23
Space diagonal 140761365.0446

Equilateral Triangle

Length = n
Perimeter 243805836
Area 2.8598701901E+15
Altitude 70380682.522301

Triangular Pyramid

Length = n
Surface area 2.8598701901E+15
Volume 6.3256080586951E+22
Height 38310391.095212