81750249 (number)

81750249 is an odd 8-digits composite number following 81750248 and preceding 81750250. In scientific notation, it is written as 8.1750249 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 45715536 positive integers (up to 81750249) that are relatively prime to 81750249.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred fifty thousand two hundred forty-nine

Notation

Scientific notation 8.1750249 × 10^7
Engineering notation 8.1750249 × 10^6

Prime Factorization of 81750249

Prime Factorization 7 × 27 × 47 × 9203

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81750249
Product of the distinct prime numbers

The prime factorization of 81750249 is 7 × 27 × 47 × 9203. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 46, 60, 771, 510, 2190, 1817, 75993, 12946, 824553, 23119, 7046848, 916440, 97303678, 3096457, 606690468, 894161370, 6512767997, 2406390479

Basic calculations (n = 81750249)

Multiplication

n×y
n×2 163500498
n×3 245250747
n×4 327000996
n×5 408751245

Division

n÷y
n÷2 40875124.5
n÷3 27250083
n÷3 20437562.25
n÷5 16350049.8

Exponentiation

ny
n2 6683103211562001
n3 5.4634535163789E+23
n4 4.466386853639E+31
n5 3.6512823741532E+39

Nth Root

y√n
2√n 9041.5844297335
3√n 434.00662741973
4√n 95.087246409461
5√n 38.238233143972

Divisors of 81750249

1, 7, 27, 47, 189, 329, 1269, 8883, 9203, 64421, 248481, 432541, 1739367, 3027787, 11678607, 81750249

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 -81750248
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 81750249 can be divided by 16 positive divisors. The sum of these divisors (counting 81750249) is 1, the average is 0.0625.

Base conversion 81750249

Base System Value
2 Binary 100110111110110100011101001
3 Ternary 12200211100021000
4 Quaternary 10313312203221
5 Quinary 131412001444
6 Senary 12040105213
8 Octal 467664351
10 Decimal 81750249
12 Duodecimal 23465209
16 Hexadecimal 4df68e9
20 Vigesimal 15aifc9
36 Base36 1co6w9

Cryptographic Hash Functions

md5 d00671c7c053a8674cc63d7e178956fa
sha1 b02b16d136a7ab91052cbdbe93bb3babbc01e2af
sha256 7e11fbec21cf1f1610441bdfb743d05e8e2580b08ff3a9cc0f236d2ec4312f11
sha512 eac75e15c622c93f718442df993ebd5627dd25f5c25dac0af0551f65a03b808dc6ae3c13297a38d36d262c460bc859e8db54e5a02fab86b40535ba631c538278
ripemd-160 732090472ec60e8c9381f8ec987c62a8f173a12b

81750249 as geometric shapes

Circle

Radius = n
Diameter 163500498
Circumference 513651963.37507
Area 2.0995587952626E+16

Sphere

Radius = n
Volume 2.2885260573714E+24
Surface area 8.3982351810502E+16
Circumference 513651963.37507

Square

Length = n
Perimeter 327000996
Area 6683103211562001
Diagonal 115612310.86318

Cube

Length = n
Surface area 40098619269372006
Volume 5.4634535163789E+23
Space diagonal 141595584.79941

Equilateral Triangle

Length = n
Perimeter 245250747
Area 2.893868578663E+15
Altitude 70797792.399703

Triangular Pyramid

Length = n
Surface area 2.893868578663E+15
Volume 6.4387417168817E+22
Height 38537436.954393