81248085 (number)

81248085 is an odd 8-digits composite number following 81248084 and preceding 81248086. In scientific notation, it is written as 8.1248085 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 41051232 positive integers (up to 81248085) that are relatively prime to 81248085.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred forty-eight thousand eighty-five

Notation

Scientific notation 8.1248085 × 10^7
Engineering notation 8.1248085 × 10^6

Prime Factorization of 81248085

Prime Factorization 15 × 3 × 19 × 95027

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81248085
Product of the distinct prime numbers

The prime factorization of 81248085 is 15 × 3 × 19 × 95027. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 4, 76, 20, 77, 372, 7632, 9241, 30593, 34024, 215272, 162396, 6363206, 6629289, 81990119, 95340084, 198301885, 398892727, 1344684618, 403077302

Basic calculations (n = 81248085)

Multiplication

n×y
n×2 162496170
n×3 243744255
n×4 324992340
n×5 406240425

Division

n÷y
n÷2 40624042.5
n÷3 27082695
n÷3 20312021.25
n÷5 16249617

Exponentiation

ny
n2 6601251316167225
n3 5.3633902804232E+23
n4 4.35765189392E+31
n5 3.5405087147762E+39

Nth Root

y√n
2√n 9013.7719629465
3√n 433.11614987882
4√n 94.940886676639
5√n 38.191140396995

Divisors of 81248085

1, 3, 15, 19, 45, 57, 285, 855, 95027, 285081, 1425405, 1805513, 4276215, 5416539, 27082695, 81248085

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81248084
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81248085 can be divided by 16 positive divisors. The sum of these divisors (counting 81248085) is 1, the average is 0.0625.

Base conversion 81248085

Base System Value
2 Binary 100110101111011111101010101
3 Ternary 12122212211102100
4 Quaternary 10311323331111
5 Quinary 131244414320
6 Senary 12021232313
8 Octal 465737525
10 Decimal 81248085
12 Duodecimal 23262699
16 Hexadecimal 4d7bf55
20 Vigesimal 157g045
36 Base36 1cdff9

Cryptographic Hash Functions

md5 f84740a65fbd1f10b889ad969bd8ecf4
sha1 88f5be07598cae3a8295a9b31ab9185bc92b3bb9
sha256 7c29c5b0a3b2e1ce8a5dc9949722b80f6507ed5512fd83d38cfae81fe4c4c397
sha512 e065fe7d0214f30ae4b9e4147237835d855b5dfe7b5b4f39b62134acfc4d31be31b88a4396e21a30106085c95aabf65d363b5780e27c4b39293854ae36663099
ripemd-160 f0cb94aeee779ce993fb0f241078b5347dd27ecb

81248085 as geometric shapes

Circle

Radius = n
Diameter 162496170
Circumference 510496773.90848
Area 2.0738442639371E+16

Sphere

Radius = n
Volume 2.2466116671083E+24
Surface area 8.2953770557484E+16
Circumference 510496773.90848

Square

Length = n
Perimeter 324992340
Area 6601251316167225
Diagonal 114902143.72384

Cube

Length = n
Surface area 39607507897003350
Volume 5.3633902804232E+23
Space diagonal 140725811.23767

Equilateral Triangle

Length = n
Perimeter 243744255
Area 2.8584256682831E+15
Altitude 70362905.618837

Triangular Pyramid

Length = n
Surface area 2.8584256682831E+15
Volume 6.3208160623954E+22
Height 38300714.574614