81576747 (number)

81576747 is an odd 8-digits composite number following 81576746 and preceding 81576748. In scientific notation, it is written as 8.1576747 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors. There are 44159904 positive integers (up to 81576747) that are relatively prime to 81576747.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-six thousand seven hundred forty-seven

Notation

Scientific notation 8.1576747 × 10^7
Engineering notation 8.1576747 × 10^6

Prime Factorization of 81576747

Prime Factorization 57 × 7 × 3 × 3 × 22717

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 27192249
Product of the distinct prime numbers

The prime factorization of 81576747 is 57 × 7 × 3 × 3 × 22717. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 2, 92, 74, 969, 560, 6367, 4211, 45142, 60022, 758048, 463001, 2704857, 1979854, 14968524, 84766344, 390694534, 981369329, 3147882657, 1380772784

Basic calculations (n = 81576747)

Multiplication

n×y
n×2 163153494
n×3 244730241
n×4 326306988
n×5 407883735

Division

n÷y
n÷2 40788373.5
n÷3 27192249
n÷3 20394186.75
n÷5 16315349.4

Exponentiation

ny
n2 6654765651102009
n3 5.4287413386424E+23
n4 4.4285905871087E+31
n5 3.6127001389115E+39

Nth Root

y√n
2√n 9031.9846656203
3√n 433.69937309655
4√n 95.036754288119
5√n 38.22198842451

Divisors of 81576747

1, 3, 7, 9, 21, 57, 63, 171, 399, 513, 1197, 3591, 22717, 68151, 159019, 204453, 477057, 1294869, 1431171, 3884607, 9064083, 11653821, 27192249, 81576747

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 -81576746
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 81576747 can be divided by 24 positive divisors. The sum of these divisors (counting 81576747) is 1, the average is 0.041666666666667.

Base conversion 81576747

Base System Value
2 Binary 100110111001100001100101011
3 Ternary 12200111112021000
4 Quaternary 10313030030223
5 Quinary 131340423442
6 Senary 12032250043
8 Octal 467141453
10 Decimal 81576747
12 Duodecimal 233a0923
16 Hexadecimal 4dcc32b
20 Vigesimal 159h1h7
36 Base36 1ckh0r

Cryptographic Hash Functions

md5 4045fd3bfa11d461bf6aad35eba5a48e
sha1 abba918b162e7369f2b725616fc619c3cefee86d
sha256 5222b695b722e769aeb49febc64806870754941c39bffa4aacc124f03981c3de
sha512 2f88d560fd60ff69fbb3715f74e2418d424f299fa3b8c3e8eba91b051bb2e6e759781b881fd7a9fac726a482d5bbb757a81cdfece0310aae031da3ccbd9f8f4b
ripemd-160 4f7de44c6e981cecf66a028d250dbb927715beb4

81576747 as geometric shapes

Circle

Radius = n
Diameter 163153494
Circumference 512561818.15791
Area 2.0906562880864E+16

Sphere

Radius = n
Volume 2.2739858543624E+24
Surface area 8.3626251523455E+16
Circumference 512561818.15791

Square

Length = n
Perimeter 326306988
Area 6654765651102009
Diagonal 115366941.98168

Cube

Length = n
Surface area 39928593906612054
Volume 5.4287413386424E+23
Space diagonal 141295070.52019

Equilateral Triangle

Length = n
Perimeter 244730241
Area 2.8815980550432E+15
Altitude 70647535.260096

Triangular Pyramid

Length = n
Surface area 2.8815980550432E+15
Volume 6.3978330231029E+22
Height 38455647.327226