81275984 (number)

81275984 is an even 8-digits composite number following 81275983 and preceding 81275985. In scientific notation, it is written as 8.1275984 × 10^7. The sum of its digits is 44. It has a total of 5 prime factors and 10 positive divisors. There are 40637984 positive integers (up to 81275984) that are relatively prime to 81275984.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seventy-five thousand nine hundred eighty-four

Notation

Scientific notation 8.1275984 × 10^7
Engineering notation 8.1275984 × 10^6

Prime Factorization of 81275984

Prime Factorization 2 × 2 × 2 × 2 × 5079749

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10159498
Product of the distinct prime numbers

The prime factorization of 81275984 is 2 × 2 × 2 × 2 × 5079749. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 7, 92, 31, 369, 896, 1680, 7385, 55424, 16925, 243046, 223440, 2397321, 2596459, 12075192, 2755433, 848238322, 97486314, 3643392410, 8778617550

Basic calculations (n = 81275984)

Multiplication

n×y
n×2 162551968
n×3 243827952
n×4 325103936
n×5 406379920

Division

n÷y
n÷2 40637992
n÷3 27091994.666667
n÷3 20318996
n÷5 16255196.8

Exponentiation

ny
n2 6605785575168256
n3 5.3689172271481E+23
n4 4.3636403065101E+31
n5 3.5465915973367E+39

Nth Root

y√n
2√n 9015.3194064326
3√n 433.16571873799
4√n 94.949035837298
5√n 38.19376285464

Divisors of 81275984

1, 2, 4, 8, 16, 5079749, 10159498, 20318996, 40637992, 81275984

10 divisors

τ Total Divisors 10
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81275983
Sum of the proper positive divisors of n
A Arithmetic Mean 0.1
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 10
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81275984 can be divided by 10 positive divisors. The sum of these divisors (counting 81275984) is 1, the average is 0.1.

Base conversion 81275984

Base System Value
2 Binary 100110110000010110001010000
3 Ternary 12122221020200122
4 Quaternary 10312002301100
5 Quinary 131301312414
6 Senary 12022005412
8 Octal 466026120
10 Decimal 81275984
12 Duodecimal 23276868
16 Hexadecimal 4d82c50
20 Vigesimal 157j9j4
36 Base36 1ce0y8

Cryptographic Hash Functions

md5 9dab449766f70c53598984425463ea1f
sha1 43b29fa62a4c42b5f9c864fd4eae365ddad9a13b
sha256 0f7e53c0bb69f56fdfde007391f7337fcc6f3223f2ac1df30c2a267ae298899e
sha512 bb2f8c36248a07acdb8e1534454278f666afd23a777047d8b22f75df58c7fb034b1d3f8cbdd5d138470a8be5588ac84465041293f1617f4552c1af6c1b0882b5
ripemd-160 d1ffe7aadecdd3ccda48a99bdb7f0299fe246751

81275984 as geometric shapes

Circle

Radius = n
Diameter 162551968
Circumference 510672068.49536
Area 2.0752687434138E+16

Sphere

Radius = n
Volume 2.2489267891387E+24
Surface area 8.3010749736552E+16
Circumference 510672068.49536

Square

Length = n
Perimeter 325103936
Area 6605785575168256
Diagonal 114941598.86802

Cube

Length = n
Surface area 39634713451009536
Volume 5.3689172271481E+23
Space diagonal 140774133.72316

Equilateral Triangle

Length = n
Perimeter 243827952
Area 2.8603890600243E+15
Altitude 70387066.861578

Triangular Pyramid

Length = n
Surface area 2.8603890600243E+15
Volume 6.3273296315761E+22
Height 38313866.28934