81893977 (number)

81893977 is an odd 8-digits composite number following 81893976 and preceding 81893978. In scientific notation, it is written as 8.1893977 × 10^7. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 74449060 positive integers (up to 81893977) that are relatively prime to 81893977.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred ninety-three thousand nine hundred seventy-seven

Notation

Scientific notation 8.1893977 × 10^7
Engineering notation 8.1893977 × 10^6

Prime Factorization of 81893977

Prime Factorization 11 × 7444907

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81893977
Product of the distinct prime numbers

The prime factorization of 81893977 is 11 × 7444907. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81893977)

Multiplication

n×y
n×2 163787954
n×3 245681931
n×4 327575908
n×5 409469885

Division

n÷y
n÷2 40946988.5
n÷3 27297992.333333
n÷3 20473494.25
n÷5 16378795.4

Exponentiation

ny
n2 6706623468876529
n3 5.4923206810783E+23
n4 4.4978798353285E+31
n5 3.6834926778316E+39

Nth Root

y√n
2√n 9049.5291037711
3√n 434.260825966
4√n 95.129012944375
5√n 38.251669295898

Divisors of 81893977

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81893976
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81893977 can be divided by 4 positive divisors. The sum of these divisors (counting 81893977) is 1, the average is 0.25.

Base conversion 81893977

Base System Value
2 Binary 100111000011001101001011001
3 Ternary 12201002122102021
4 Quaternary 10320121221121
5 Quinary 131431101402
6 Senary 12043134441
8 Octal 470315131
10 Decimal 81893977
12 Duodecimal 23514421
16 Hexadecimal 4e19a59
20 Vigesimal 15bgeih
36 Base36 1cr9sp

Cryptographic Hash Functions

md5 4bb0a94ba8aa7e99032fb998b5f913e7
sha1 2d8b15be1712d577cc21ca129d53b61205382c89
sha256 230f35c2b7bfe0f3dca64960eb071cf471614ca9840343bd82483156c2953dfb
sha512 495d532f0d28bd42fd14761ddaa563b2222a713faa84ccab5ccc93e87af7b55d613ec59322675390fe4ad853392c0b971a50ca7dd9a9b212612b628619a96965
ripemd-160 dd0c5d729e736814304772e9bc2f5e780f74e3bf

81893977 as geometric shapes

Circle

Radius = n
Diameter 163787954
Circumference 514555033.0329
Area 2.1069479020215E+16

Sphere

Radius = n
Volume 2.3006179070447E+24
Surface area 8.4277916080862E+16
Circumference 514555033.0329

Square

Length = n
Perimeter 327575908
Area 6706623468876529
Diagonal 115815572.95007

Cube

Length = n
Surface area 40239740813259174
Volume 5.4923206810783E+23
Space diagonal 141844528.99788

Equilateral Triangle

Length = n
Perimeter 245681931
Area 2.904053148832E+15
Altitude 70922264.498939

Triangular Pyramid

Length = n
Surface area 2.904053148832E+15
Volume 6.472761996736E+22
Height 38605190.983357