81297777 (number)

81297777 is an odd 8-digits composite number following 81297776 and preceding 81297778. In scientific notation, it is written as 8.1297777 × 10^7. The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors. There are 49271360 positive integers (up to 81297777) that are relatively prime to 81297777.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1297777 × 10^7
Engineering notation 8.1297777 × 10^6

Prime Factorization of 81297777

Prime Factorization 33 × 2463569

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81297777
Product of the distinct prime numbers

The prime factorization of 81297777 is 33 × 2463569. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 6, 12, 86, 805, 802, 1223, 5698, 67175, 79633, 674769, 187505, 4480457, 6055748, 53436625, 10224010, 192484041, 813631315, 4924182836, 7945116192

Basic calculations (n = 81297777)

Multiplication

n×y
n×2 162595554
n×3 243893331
n×4 325191108
n×5 406488885

Division

n÷y
n÷2 40648888.5
n÷3 27099259
n÷3 20324444.25
n÷5 16259555.4

Exponentiation

ny
n2 6609328545141729
n3 5.3732371818267E+23
n4 4.3683223817625E+31
n5 3.5513489885664E+39

Nth Root

y√n
2√n 9016.5279903076
3√n 433.2044310219
4√n 94.955400006043
5√n 38.195810857933

Divisors of 81297777

1, 33, 2463569, 81297777

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81297776
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81297777 can be divided by 4 positive divisors. The sum of these divisors (counting 81297777) is 1, the average is 0.25.

Base conversion 81297777

Base System Value
2 Binary 100110110001000000101110001
3 Ternary 12122222100120210
4 Quaternary 10312020011301
5 Quinary 131303012102
6 Senary 12022254333
8 Octal 466100561
10 Decimal 81297777
12 Duodecimal 232873a9
16 Hexadecimal 4d88171
20 Vigesimal 158248h
36 Base36 1cehrl

Cryptographic Hash Functions

md5 2e2d5df3754cb6d245d27d7e1d293509
sha1 e117092692e80256d0448aa79dc93c688f59cce3
sha256 1a1b7f68c2c66d34b5b044986376f5f1e0d11ea3cf44f6c504eedc1eb25522ce
sha512 d1925f6ccac147568be01f80071dbf8f3b1248c687747b4484e277eb27ae9962738bef3318550ad9eb30e88b2f824dd8924554f6fb4026c26d2bbd5c1be2912a
ripemd-160 91ef6f0d8c1cdf377a5131a27e20620e99d2fac8

81297777 as geometric shapes

Circle

Radius = n
Diameter 162595554
Circumference 510808997.95276
Area 2.0763818002579E+16

Sphere

Radius = n
Volume 2.250736327523E+24
Surface area 8.3055272010314E+16
Circumference 510808997.95276

Square

Length = n
Perimeter 325191108
Area 6609328545141729
Diagonal 114972418.82418

Cube

Length = n
Surface area 39655971270850374
Volume 5.3732371818267E+23
Space diagonal 140811880.3064

Equilateral Triangle

Length = n
Perimeter 243893331
Area 2.8619232110252E+15
Altitude 70405940.153202

Triangular Pyramid

Length = n
Surface area 2.8619232110252E+15
Volume 6.3324207469889E+22
Height 38324139.608061