81723786 (number)

81723786 is an even 8-digits composite number following 81723785 and preceding 81723787. In scientific notation, it is written as 8.1723786 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 26834544 positive integers (up to 81723786) that are relatively prime to 81723786.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-three thousand seven hundred eighty-six

Notation

Scientific notation 8.1723786 × 10^7
Engineering notation 8.1723786 × 10^6

Prime Factorization of 81723786

Prime Factorization 2 × 3 × 67 × 203293

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81723786
Product of the distinct prime numbers

The prime factorization of 81723786 is 2 × 3 × 67 × 203293. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 1, 61, 81, 820, 394, 436, 8840, 29343, 61428, 267261, 689181, 6107523, 74473, 15432195, 22282329, 686826762, 691516633, 8409011501, 2983050887

Basic calculations (n = 81723786)

Multiplication

n×y
n×2 163447572
n×3 245171358
n×4 326895144
n×5 408618930

Division

n÷y
n÷2 40861893
n÷3 27241262
n÷3 20430946.5
n÷5 16344757.2

Exponentiation

ny
n2 6678777198173796
n3 5.4581495848523E+23
n4 4.4606064862846E+31
n5 3.6453764991534E+39

Nth Root

y√n
2√n 9040.1209062711
3√n 433.95979226424
4√n 95.079550410544
5√n 38.235757238579

Divisors of 81723786

1, 2, 3, 6, 67, 134, 201, 402, 203293, 406586, 609879, 1219758, 13620631, 27241262, 40861893, 81723786

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 -81723785
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 81723786 can be divided by 16 positive divisors. The sum of these divisors (counting 81723786) is 1, the average is 0.0625.

Base conversion 81723786

Base System Value
2 Binary 100110111110000000110001010
3 Ternary 12200202222221220
4 Quaternary 10313300012022
5 Quinary 131410130121
6 Senary 12035342510
8 Octal 467600612
10 Decimal 81723786
12 Duodecimal 23451a36
16 Hexadecimal 4df018a
20 Vigesimal 15af996
36 Base36 1cnmh6

Cryptographic Hash Functions

md5 cb1fcc8de82dc5ff1b480b5e2ce2ebcb
sha1 40ea67aa7aaaa2fccbbe0959431e185141e87016
sha256 91db691cec0bf9c563003e88f0682a747163ab6e4d17e8c43987807928567b47
sha512 ea38c64eb92d8858858313703a768effdf5a371d30fdc7dc2da3ca0039b8756b53cb340905c0b151bf4068dbcfd77951523ca9cd09e22a834e3e8b138fdc2ca6
ripemd-160 b0cc92241dddfc9714c41661703e7bdf937127cb

81723786 as geometric shapes

Circle

Radius = n
Diameter 163447572
Circumference 513485691.44229
Area 2.0981997380746E+16

Sphere

Radius = n
Volume 2.2863043517288E+24
Surface area 8.3927989522983E+16
Circumference 513485691.44229

Square

Length = n
Perimeter 326895144
Area 6678777198173796
Diagonal 115574886.52968

Cube

Length = n
Surface area 40072663189042776
Volume 5.4581495848523E+23
Space diagonal 141549749.53889

Equilateral Triangle

Length = n
Perimeter 245171358
Area 2.8919953599174E+15
Altitude 70774874.769443

Triangular Pyramid

Length = n
Surface area 2.8919953599174E+15
Volume 6.4324909736327E+22
Height 38524962.176559