81884865 (number)

81884865 is an odd 8-digits composite number following 81884864 and preceding 81884866. In scientific notation, it is written as 8.1884865 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 43671920 positive integers (up to 81884865) that are relatively prime to 81884865.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred eighty-four thousand eight hundred sixty-five

Notation

Scientific notation 8.1884865 × 10^7
Engineering notation 8.1884865 × 10^6

Prime Factorization of 81884865

Prime Factorization 3 × 5 × 5458991

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81884865
Product of the distinct prime numbers

The prime factorization of 81884865 is 3 × 5 × 5458991. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81884865)

Multiplication

n×y
n×2 163769730
n×3 245654595
n×4 327539460
n×5 409424325

Division

n÷y
n÷2 40942432.5
n÷3 27294955
n÷3 20471216.25
n÷5 16376973

Exponentiation

ny
n2 6705131116068225
n3 5.4904875624655E+23
n4 4.4958783283666E+31
n5 3.6814438997473E+39

Nth Root

y√n
2√n 9049.0256381557
3√n 434.24471924053
4√n 95.126366682197
5√n 38.250818037388

Divisors of 81884865

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81884864
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81884865 can be divided by 8 positive divisors. The sum of these divisors (counting 81884865) is 1, the average is 0.125.

Base conversion 81884865

Base System Value
2 Binary 100111000010111011011000001
3 Ternary 12201002011220210
4 Quaternary 10320113123001
5 Quinary 131430303430
6 Senary 12043024333
8 Octal 470273301
10 Decimal 81884865
12 Duodecimal 2350b0a9
16 Hexadecimal 4e176c1
20 Vigesimal 15bfc35
36 Base36 1cr2rl

Cryptographic Hash Functions

md5 fdce52b0ca5fb7f818f3309d013ae2fc
sha1 46b9b6506da98ff0689ba7fee1bcbcb42a9f7a83
sha256 24c0dd9c1c90d4a760f8d9569db0fda0c177fc2986cadf865e8891396a3df031
sha512 a5cdea299ad50ac4abc84eb554a926c9f0e32ef100de52c5a486f7396ae8599776530b1c5d98d83ff0b553dc033ccad608bef2e4d1898fb047ca47f101de4b0d
ripemd-160 1e2f23072bb1e051fb3ff2ba6a731b731a2ebd74

81884865 as geometric shapes

Circle

Radius = n
Diameter 163769730
Circumference 514497780.64838
Area 2.1064790655596E+16

Sphere

Radius = n
Volume 2.2998500521157E+24
Surface area 8.4259162622385E+16
Circumference 514497780.64838

Square

Length = n
Perimeter 327539460
Area 6705131116068225
Diagonal 115802686.63609

Cube

Length = n
Surface area 40230786696409350
Volume 5.4904875624655E+23
Space diagonal 141828746.55092

Equilateral Triangle

Length = n
Perimeter 245654595
Area 2.9034069411103E+15
Altitude 70914373.275459

Triangular Pyramid

Length = n
Surface area 2.9034069411103E+15
Volume 6.4706016457329E+22
Height 38600895.545363