81125850 (number)

81125850 is an even 8-digits composite number following 81125849 and preceding 81125851. In scientific notation, it is written as 8.1125850 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors. There are 19968960 positive integers (up to 81125850) that are relatively prime to 81125850.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-five thousand eight hundred fifty

Notation

Scientific notation 8.1125850 × 10^7
Engineering notation 8.1125850 × 10^6

Prime Factorization of 81125850

Prime Factorization 2 × 5 × 15 × 13 × 41603

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81125850
Product of the distinct prime numbers

The prime factorization of 81125850 is 2 × 5 × 15 × 13 × 41603. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 9, 57, 59, 868, 635, 25, 2473, 39630, 69160, 257771, 548227, 7699672, 7283854, 29327790, 47821571, 429132411, 877813897, 8980251156, 1451687437

Basic calculations (n = 81125850)

Multiplication

n×y
n×2 162251700
n×3 243377550
n×4 324503400
n×5 405629250

Division

n÷y
n÷2 40562925
n÷3 27041950
n÷3 20281462.5
n÷5 16225170

Exponentiation

ny
n2 6581403538222500
n3 5.3392195623131E+23
n4 4.3314872532928E+31
n5 3.5139558518754E+39

Nth Root

y√n
2√n 9006.9889530298
3√n 432.89883798941
4√n 94.905157673489
5√n 38.179642019153

Divisors of 81125850

1, 2, 5, 10, 13, 15, 26, 30, 65, 75, 130, 150, 195, 390, 975, 1950, 41603, 83206, 208015, 416030, 540839, 624045, 1081678, 1248090, 2704195, 3120225, 5408390, 6240450, 8112585, 16225170, 40562925, 81125850

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 -81125849
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 81125850 can be divided by 32 positive divisors. The sum of these divisors (counting 81125850) is 1, the average is 0.03125.

Base conversion 81125850

Base System Value
2 Binary 100110101011110000111011010
3 Ternary 12122122121202010
4 Quaternary 10311132013122
5 Quinary 131232011400
6 Senary 12014450350
8 Octal 465360732
10 Decimal 81125850
12 Duodecimal 232039b6
16 Hexadecimal 4d5e1da
20 Vigesimal 1570eca
36 Base36 1cat3u

Cryptographic Hash Functions

md5 0697ce77ce9291d1e03d64b52ecd13ba
sha1 efb6d550eb32e8f66ea06d24cec8e9ba75b78bb2
sha256 605081e1bd09a608d9be4099cd7b63c1fece2c8b9633ee69987556e02d99862a
sha512 3afc72ae1d3befc34a121330d2fa7c8053a7db4f90782f3924dcf582ac967c1f222cf84fa3dabaca7d138c470579cfaf3d1d750259605dda1fb46128d066d97f
ripemd-160 2293d7202ae8a8323c9602f0ea1696222c298f21

81125850 as geometric shapes

Circle

Radius = n
Diameter 162251700
Circumference 509728748.75246
Area 2.067608900599E+16

Sphere

Radius = n
Volume 2.2364870603821E+24
Surface area 8.2704356023959E+16
Circumference 509728748.75246

Square

Length = n
Perimeter 324503400
Area 6581403538222500
Diagonal 114729277.32905

Cube

Length = n
Surface area 39488421229335000
Volume 5.3392195623131E+23
Space diagonal 140514094.00721

Equilateral Triangle

Length = n
Perimeter 243377550
Area 2.8498313283287E+15
Altitude 70257047.003606

Triangular Pyramid

Length = n
Surface area 2.8498313283287E+15
Volume 6.2923305979257E+22
Height 38243092.443015