81278275 (number)

81278275 is an odd 8-digits composite number following 81278274 and preceding 81278276. In scientific notation, it is written as 8.1278275 × 10^7. The sum of its digits is 40. It has a total of 6 prime factors and 48 positive divisors. There are 55111680 positive integers (up to 81278275) that are relatively prime to 81278275.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1278275 × 10^7
Engineering notation 8.1278275 × 10^6

Prime Factorization of 81278275

Prime Factorization 5 × 5 × 13 × 17 × 47 × 313

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 16255655
Product of the distinct prime numbers

The prime factorization of 81278275 is 5 × 5 × 13 × 17 × 47 × 313. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81278275)

Multiplication

n×y
n×2 162556550
n×3 243834825
n×4 325113100
n×5 406391375

Division

n÷y
n÷2 40639137.5
n÷3 27092758.333333
n÷3 20319568.75
n÷5 16255655

Exponentiation

ny
n2 6606157986975625
n3 5.3693712555885E+23
n4 4.3641323348882E+31
n5 3.5470914805143E+39

Nth Root

y√n
2√n 9015.4464670364
3√n 433.16978871163
4√n 94.949704933909
5√n 38.19397817267

Divisors of 81278275

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81278274
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81278275 can be divided by 48 positive divisors. The sum of these divisors (counting 81278275) is 1, the average is 0.020833333333333.

Base conversion 81278275

Base System Value
2 Binary 100110110000011010101000011
3 Ternary 12122221100211111
4 Quaternary 10312003111003
5 Quinary 131301401100
6 Senary 12022024151
8 Octal 466032503
10 Decimal 81278275
12 Duodecimal 23278057
16 Hexadecimal 4d83543
20 Vigesimal 157jfdf
36 Base36 1ce2pv

Cryptographic Hash Functions

md5 6fa4022e029cb2874e9cc63fa01ca356
sha1 98572f5c2da030eec4f3181983ee0bc2ec694ef7
sha256 5c454e3b640fab7dadb9e750a68ecf2c7ad10efe531056213c4fd6acecc5eedc
sha512 f3281f188da2ed41d65b665fd592dc7da66dde5ebaf72b2e71e9c5848e2696ba6f47726f47c58d0e1b8765446e6233d0e731ab32685dde31c5a28c01bad7824a
ripemd-160 f2183f0be1eb4b41f6ebdd80d55d641674a54cd4

81278275 as geometric shapes

Circle

Radius = n
Diameter 162556550
Circumference 510686463.2729
Area 2.0753857400336E+16

Sphere

Radius = n
Volume 2.2491169721271E+24
Surface area 8.3015429601345E+16
Circumference 510686463.2729

Square

Length = n
Perimeter 325113100
Area 6606157986975625
Diagonal 114944838.83129

Cube

Length = n
Surface area 39636947921853750
Volume 5.3693712555885E+23
Space diagonal 140778101.85156

Equilateral Triangle

Length = n
Perimeter 243834825
Area 2.8605503190672E+15
Altitude 70389050.925778

Triangular Pyramid

Length = n
Surface area 2.8605503190672E+15
Volume 6.3278647092246E+22
Height 38314946.277097