81105864 (number)

81105864 is an even 8-digits composite number following 81105863 and preceding 81105865. In scientific notation, it is written as 8.1105864 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 16 positive divisors. There are 23173056 positive integers (up to 81105864) that are relatively prime to 81105864.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1105864 × 10^7
Engineering notation 8.1105864 × 10^6

Prime Factorization of 81105864

Prime Factorization 2 × 2 × 2 × 21 × 482773

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20276466
Product of the distinct prime numbers

The prime factorization of 81105864 is 2 × 2 × 2 × 21 × 482773. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 10, 57, 98, 653, 725, 6534, 9024, 53567, 11317, 823819, 900180, 3731911, 5743915, 49020799, 85108766, 740245899, 106389719, 9098792498, 8087574748

Basic calculations (n = 81105864)

Multiplication

n×y
n×2 162211728
n×3 243317592
n×4 324423456
n×5 405529320

Division

n÷y
n÷2 40552932
n÷3 27035288
n÷3 20276466
n÷5 16221172.8

Exponentiation

ny
n2 6578161175186496
n3 5.3352744564476E+23
n4 4.3272204446731E+31
n5 3.5096295288368E+39

Nth Root

y√n
2√n 9005.8794129169
3√n 432.86328570958
4√n 94.899311972832
5√n 38.177760661902

Divisors of 81105864

1, 2, 4, 8, 21, 42, 84, 168, 482773, 965546, 1931092, 3862184, 10138233, 20276466, 40552932, 81105864

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81105863
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81105864 can be divided by 16 positive divisors. The sum of these divisors (counting 81105864) is 1, the average is 0.0625.

Base conversion 81105864

Base System Value
2 Binary 100110101011001001111001000
3 Ternary 12122121121022220
4 Quaternary 10311121033020
5 Quinary 131230341424
6 Senary 12014214040
8 Octal 465311710
10 Decimal 81105864
12 Duodecimal 231b4320
16 Hexadecimal 4d593c8
20 Vigesimal 156i4d4
36 Base36 1cadoo

Cryptographic Hash Functions

md5 c18ab394340bd85cae61c2f96f5c0170
sha1 f65ee4a9631c97f610644cd2c6b6122a9ad5faaf
sha256 5a6b67fd832a2bf75c8acdd939d298feb0f8961dba6191e5c9b69105eb4b6860
sha512 985eab71e07d64ff1246946cd2d7d1cef152357e8af081cadb01b1b21e777848254a6f5d3fa10bd213e87e6bbb46953c77c29f6fe921f64cd222c6863ec94810
ripemd-160 5d9117c82277d83fd0b92029c92002623eed3292

81105864 as geometric shapes

Circle

Radius = n
Diameter 162211728
Circumference 509603173.01091
Area 2.0665902822095E+16

Sphere

Radius = n
Volume 2.2348345383015E+24
Surface area 8.2663611288382E+16
Circumference 509603173.01091

Square

Length = n
Perimeter 324423456
Area 6578161175186496
Diagonal 114701012.85679

Cube

Length = n
Surface area 39468967051118976
Volume 5.3352744564476E+23
Space diagonal 140479477.23977

Equilateral Triangle

Length = n
Perimeter 243317592
Area 2.84842734395E+15
Altitude 70239738.619886

Triangular Pyramid

Length = n
Surface area 2.84842734395E+15
Volume 6.2876812460757E+22
Height 38233670.952263