81298275 (number)

81298275 is an odd 8-digits composite number following 81298274 and preceding 81298276. In scientific notation, it is written as 8.1298275 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors. There are 41299200 positive integers (up to 81298275) that are relatively prime to 81298275.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-eight thousand two hundred seventy-five

Notation

Scientific notation 8.1298275 × 10^7
Engineering notation 8.1298275 × 10^6

Prime Factorization of 81298275

Prime Factorization 3 × 25 × 31 × 73 × 479

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81298275
Product of the distinct prime numbers

The prime factorization of 81298275 is 3 × 25 × 31 × 73 × 479. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 10, 22, 60, 328, 507, 1459, 3805, 63955, 51206, 789671, 160359, 7873004, 8037200, 83493229, 49468296, 327871728, 905159680, 639541710, 3742625065

Basic calculations (n = 81298275)

Multiplication

n×y
n×2 162596550
n×3 243894825
n×4 325193100
n×5 406491375

Division

n÷y
n÷2 40649137.5
n÷3 27099425
n÷3 20324568.75
n÷5 16259655

Exponentiation

ny
n2 6609409517975625
n3 5.3733359258E+23
n4 4.3684294176307E+31
n5 3.5514577611263E+39

Nth Root

y√n
2√n 9016.5556062168
3√n 433.20531556993
4√n 94.955545421091
5√n 38.195857652489

Divisors of 81298275

1, 3, 25, 31, 73, 75, 93, 219, 479, 775, 1437, 1825, 2263, 2325, 5475, 6789, 11975, 14849, 34967, 35925, 44547, 56575, 104901, 169725, 371225, 874175, 1083977, 1113675, 2622525, 3251931, 27099425, 81298275

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81298274
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81298275 can be divided by 32 positive divisors. The sum of these divisors (counting 81298275) is 1, the average is 0.03125.

Base conversion 81298275

Base System Value
2 Binary 100110110001000001101100011
3 Ternary 12122222101021020
4 Quaternary 10312020031203
5 Quinary 131303021100
6 Senary 12022300523
8 Octal 466101543
10 Decimal 81298275
12 Duodecimal 23287743
16 Hexadecimal 4d88363
20 Vigesimal 15825df
36 Base36 1cei5f

Cryptographic Hash Functions

md5 9479f3c75f95555dd107365f6c52c761
sha1 d88bf171caa71cdaced65034006e9540cb784748
sha256 c3c8e75bc9c28f7fc113f3706e92bc779404f62266fe95849e9d8066de7a4fab
sha512 4953892a6f49027a55a90c4f062c84d022cb76dfb489bc2e6b1c8d4ce7b79afc05ae34ba576c7f034cbdc61ac3067d07492e658d73100ceac452de1b2322c30c
ripemd-160 e9b439c284c05980638e6252caec0ef75a898f00

81298275 as geometric shapes

Circle

Radius = n
Diameter 162596550
Circumference 510812126.97905
Area 2.0764072386239E+16

Sphere

Radius = n
Volume 2.2507776893018E+24
Surface area 8.3056289544955E+16
Circumference 510812126.97905

Square

Length = n
Perimeter 325193100
Area 6609409517975625
Diagonal 114973123.10254

Cube

Length = n
Surface area 39656457107853750
Volume 5.3733359258E+23
Space diagonal 140812742.86771

Equilateral Triangle

Length = n
Perimeter 243894825
Area 2.8619582732908E+15
Altitude 70406371.433853

Triangular Pyramid

Length = n
Surface area 2.8619582732908E+15
Volume 6.3325371178775E+22
Height 38324374.367513