81297776 (number)

81297776 is an even 8-digits composite number following 81297775 and preceding 81297777. In scientific notation, it is written as 8.1297776 × 10^7. The sum of its digits is 47. It has a total of 7 prime factors and 40 positive divisors. There are 34652160 positive integers (up to 81297776) that are relatively prime to 81297776.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-seven thousand seven hundred seventy-six

Notation

Scientific notation 8.1297776 × 10^7
Engineering notation 8.1297776 × 10^6

Prime Factorization of 81297776

Prime Factorization 2 × 2 × 2 × 2 × 7 × 193 × 3761

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 10162222
Product of the distinct prime numbers

The prime factorization of 81297776 is 2 × 2 × 2 × 2 × 7 × 193 × 3761. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81297776)

Multiplication

n×y
n×2 162595552
n×3 243893328
n×4 325191104
n×5 406488880

Division

n÷y
n÷2 40648888
n÷3 27099258.666667
n÷3 20324444
n÷5 16259555.2

Exponentiation

ny
n2 6609328382546176
n3 5.3732369835468E+23
n4 4.368322166833E+31
n5 3.5513487701503E+39

Nth Root

y√n
2√n 9016.5279348539
3√n 433.20442924569
4√n 94.955399714044
5√n 38.195810763967

Divisors of 81297776

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 -81297775
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 81297776 can be divided by 40 positive divisors. The sum of these divisors (counting 81297776) is 1, the average is 0.025.

Base conversion 81297776

Base System Value
2 Binary 100110110001000000101110000
3 Ternary 12122222100120202
4 Quaternary 10312020011300
5 Quinary 131303012101
6 Senary 12022254332
8 Octal 466100560
10 Decimal 81297776
12 Duodecimal 232873a8
16 Hexadecimal 4d88170
20 Vigesimal 158248g
36 Base36 1cehrk

Cryptographic Hash Functions

md5 c52cb6bf7c27acb490f46df9ef7c91ad
sha1 5067ef6ef14ae84bf04040145c821dd5c6aa7bf6
sha256 c04152f7d4fe08d1b5016d10a17f4097b3be86e2be3b55ceb757d3feb61e5db9
sha512 ec44c1a2e8a6f68635e8bc33437ab1f0050760c75790fab6157fb136c2530b492ba74548eef3d4efaaee85680298f200b9e8517584a6dad242ce0e73681cbcc2
ripemd-160 58aab6d29f642e8c01e8de27aec7933a5249c3f5

81297776 as geometric shapes

Circle

Radius = n
Diameter 162595552
Circumference 510808991.66958
Area 2.076381749177E+16

Sphere

Radius = n
Volume 2.2507362444677E+24
Surface area 8.3055269967078E+16
Circumference 510808991.66958

Square

Length = n
Perimeter 325191104
Area 6609328382546176
Diagonal 114972417.40997

Cube

Length = n
Surface area 39655970295277056
Volume 5.3732369835468E+23
Space diagonal 140811878.57435

Equilateral Triangle

Length = n
Perimeter 243893328
Area 2.8619231406193E+15
Altitude 70405939.287177

Triangular Pyramid

Length = n
Surface area 2.8619231406193E+15
Volume 6.3324205133138E+22
Height 38324139.136657