81665622 (number)

81665622 is an even 8-digits composite number following 81665621 and preceding 81665623. In scientific notation, it is written as 8.1665622 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 27191904 positive integers (up to 81665622) that are relatively prime to 81665622.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred sixty-five thousand six hundred twenty-two

Notation

Scientific notation 8.1665622 × 10^7
Engineering notation 8.1665622 × 10^6

Prime Factorization of 81665622

Prime Factorization 2 × 9 × 1193 × 3803

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81665622
Product of the distinct prime numbers

The prime factorization of 81665622 is 2 × 9 × 1193 × 3803. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 7, 100, 30, 141, 855, 844, 1843, 72696, 69088, 829080, 897528, 5801994, 4028641, 74503246, 29626803, 831308986, 535279781, 4002096811, 6118946165

Basic calculations (n = 81665622)

Multiplication

n×y
n×2 163331244
n×3 244996866
n×4 326662488
n×5 408328110

Division

n÷y
n÷2 40832811
n÷3 27221874
n÷3 20416405.5
n÷5 16333124.4

Exponentiation

ny
n2 6669273816646884
n3 5.4465039452478E+23
n4 4.4479213241412E+31
n5 3.6324226154305E+39

Nth Root

y√n
2√n 9036.9033413
3√n 433.85681601114
4√n 95.062628520886
5√n 38.230313100247

Divisors of 81665622

1, 2, 9, 18, 1193, 2386, 3803, 7606, 10737, 21474, 34227, 68454, 4536979, 9073958, 40832811, 81665622

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 -81665621
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 81665622 can be divided by 16 positive divisors. The sum of these divisors (counting 81665622) is 1, the average is 0.0625.

Base conversion 81665622

Base System Value
2 Binary 100110111100001111001010110
3 Ternary 12200200001011200
4 Quaternary 10313201321112
5 Quinary 131401244442
6 Senary 12034213330
8 Octal 467417126
10 Decimal 81665622
12 Duodecimal 23424246
16 Hexadecimal 4de1e56
20 Vigesimal 15a8412
36 Base36 1cmdli

Cryptographic Hash Functions

md5 e13d33f0d778285d4a382cb099cb3293
sha1 ac03dc0be6b3928ae7d8d35d74bb43acf44b7058
sha256 1dd7d0ddb1160fbb2032414188a016c86e856dc67666326fc7a30c6ee41d21e4
sha512 5b184c2e042c8ac7b93bf93eeca3f0ef398b5ce9962c9a12aa123e35a2b9cd74a29749130531423906a78a58e57ba9b039abc940b89932a82be906d3d2e0cbb2
ripemd-160 6db00e7ec9e0ae4503bb980c1fc4344e29ae17c3

81665622 as geometric shapes

Circle

Radius = n
Diameter 163331244
Circumference 513120236.25208
Area 2.0952141627157E+16

Sphere

Radius = n
Volume 2.2814262376184E+24
Surface area 8.3808566508626E+16
Circumference 513120236.25208

Square

Length = n
Perimeter 326662488
Area 6669273816646884
Diagonal 115492630.21203

Cube

Length = n
Surface area 40015642899881304
Volume 5.4465039452478E+23
Space diagonal 141449006.53571

Equilateral Triangle

Length = n
Perimeter 244996866
Area 2.8878802750053E+15
Altitude 70724503.267857

Triangular Pyramid

Length = n
Surface area 2.8878802750053E+15
Volume 6.41876645574E+22
Height 38497543.404012