81888968 (number)

81888968 is an even 8-digits composite number following 81888967 and preceding 81888969. In scientific notation, it is written as 8.1888968 × 10^7. The sum of its digits is 56. It has a total of 6 prime factors and 32 positive divisors. There are 35027520 positive integers (up to 81888968) that are relatively prime to 81888968.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred eighty-eight thousand nine hundred sixty-eight

Notation

Scientific notation 8.1888968 × 10^7
Engineering notation 8.1888968 × 10^6

Prime Factorization of 81888968

Prime Factorization 2 × 2 × 2 × 7 × 683 × 2141

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20472242
Product of the distinct prime numbers

The prime factorization of 81888968 is 2 × 2 × 2 × 7 × 683 × 2141. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81888968)

Multiplication

n×y
n×2 163777936
n×3 245666904
n×4 327555872
n×5 409444840

Division

n÷y
n÷2 40944484
n÷3 27296322.666667
n÷3 20472242
n÷5 16377793.6

Exponentiation

ny
n2 6705803080105024
n3 5.4913129384102E+23
n4 4.4967794949146E+31
n5 3.6823663216212E+39

Nth Root

y√n
2√n 9049.2523448073
3√n 434.25197201073
4√n 95.127558282589
5√n 38.251201355992

Divisors of 81888968

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 -81888967
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 81888968 can be divided by 32 positive divisors. The sum of these divisors (counting 81888968) is 1, the average is 0.03125.

Base conversion 81888968

Base System Value
2 Binary 100111000011000011011001000
3 Ternary 12201002101112202
4 Quaternary 10320120123020
5 Quinary 131430421333
6 Senary 12043055332
8 Octal 470303310
10 Decimal 81888968
12 Duodecimal 23511548
16 Hexadecimal 4e186c8
20 Vigesimal 15bg288
36 Base36 1cr5xk

Cryptographic Hash Functions

md5 62136500d2d1351c7493cfa990bec685
sha1 bde324278722d9180007981245047cf05251fc46
sha256 c75bb8e89cf6feea14b0886e5036d8f9745f8c22f6ca35d4d595083658c63056
sha512 b37196f4274e90ebde8e4da737285799ddb0373fb6f69a67320fd68731ffb1588421b194bb2ceaab8a1b8ba15937d701d31497e3ffe9de26cf74f61b36397e5f
ripemd-160 3cb4d9842d7b7cf9ce75faa5bca2103bb2d6adfa

81888968 as geometric shapes

Circle

Radius = n
Diameter 163777936
Circumference 514523560.5577
Area 2.1066901692878E+16

Sphere

Radius = n
Volume 2.3001957847829E+24
Surface area 8.4267606771511E+16
Circumference 514523560.5577

Square

Length = n
Perimeter 327555872
Area 6705803080105024
Diagonal 115808489.15434

Cube

Length = n
Surface area 40234818480630144
Volume 5.4913129384102E+23
Space diagonal 141835853.15538

Equilateral Triangle

Length = n
Perimeter 245666904
Area 2.9036979100734E+15
Altitude 70917926.577691

Triangular Pyramid

Length = n
Surface area 2.9036979100734E+15
Volume 6.4715743606122E+22
Height 38602829.718112