81668082 (number)

81668082 is an even 8-digits composite number following 81668081 and preceding 81668083. In scientific notation, it is written as 8.1668082 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 26937384 positive integers (up to 81668082) that are relatively prime to 81668082.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred sixty-eight thousand eighty-two

Notation

Scientific notation 8.1668082 × 10^7
Engineering notation 8.1668082 × 10^6

Prime Factorization of 81668082

Prime Factorization 2 × 309 × 103 × 1283

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81668082
Product of the distinct prime numbers

The prime factorization of 81668082 is 2 × 309 × 103 × 1283. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 96, 97, 878, 374, 9771, 9459, 8970, 1593, 663968, 75045, 1634329, 3038985, 70294081, 93874606, 441603697, 280592496, 8771401903, 5720358154

Basic calculations (n = 81668082)

Multiplication

n×y
n×2 163336164
n×3 245004246
n×4 326672328
n×5 408340410

Division

n÷y
n÷2 40834041
n÷3 27222694
n÷3 20417020.5
n÷5 16333616.4

Exponentiation

ny
n2 6669675617558724
n3 5.4469961524819E+23
n4 4.4484572843457E+31
n5 3.6329697427144E+39

Nth Root

y√n
2√n 9037.0394488461
3√n 433.86117229972
4√n 95.063344401752
5√n 38.230543418549

Divisors of 81668082

1, 2, 103, 206, 309, 618, 1283, 2566, 31827, 63654, 132149, 264298, 396447, 792894, 40834041, 81668082

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 -81668081
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 81668082 can be divided by 16 positive divisors. The sum of these divisors (counting 81668082) is 1, the average is 0.0625.

Base conversion 81668082

Base System Value
2 Binary 100110111100010011111110010
3 Ternary 12200200011112210
4 Quaternary 10313202133302
5 Quinary 131401334312
6 Senary 12034232550
8 Octal 467423762
10 Decimal 81668082
12 Duodecimal 23425756
16 Hexadecimal 4de27f2
20 Vigesimal 15a8a42
36 Base36 1cmfhu

Cryptographic Hash Functions

md5 c08e6f1340c03440eace6c5ff548a4ae
sha1 ced97f7e07f62c91fc69e9c9e546bf1c883f6e14
sha256 841913ccaaf7eee224512c79b082e7c1a0fc9c5ff644309b604a321de1b07b55
sha512 6cb549eb1e018dc03c36f4068169f5527d2aca7ce7ec19c50355627a551c7cb45e5f7671572e1d8cbc2c825566430d5db112de1442ee97f64700975dada02d99
ripemd-160 d5813bc61c5f5f25f3ea0788f0884e446c9d9250

81668082 as geometric shapes

Circle

Radius = n
Diameter 163336164
Circumference 513135692.88794
Area 2.0953403921949E+16

Sphere

Radius = n
Volume 2.2816324129025E+24
Surface area 8.3813615687798E+16
Circumference 513135692.88794

Square

Length = n
Perimeter 326672328
Area 6669675617558724
Diagonal 115496109.1774

Cube

Length = n
Surface area 40018053705352344
Volume 5.4469961524819E+23
Space diagonal 141453267.3807

Equilateral Triangle

Length = n
Perimeter 245004246
Area 2.8880542599038E+15
Altitude 70726633.690351

Triangular Pyramid

Length = n
Surface area 2.8880542599038E+15
Volume 6.4193465275283E+22
Height 38498703.059133