81672018 (number)

81672018 is an even 8-digits composite number following 81672017 and preceding 81672019. In scientific notation, it is written as 8.1672018 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 27060656 positive integers (up to 81672018) that are relatively prime to 81672018.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred seventy-two thousand eighteen

Notation

Scientific notation 8.1672018 × 10^7
Engineering notation 8.1672018 × 10^6

Prime Factorization of 81672018

Prime Factorization 2 × 3 × 167 × 81509

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81672018
Product of the distinct prime numbers

The prime factorization of 81672018 is 2 × 3 × 167 × 81509. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 10, 58, 10, 36, 324, 3622, 6722, 19795, 57473, 887644, 33175, 5837821, 5062622, 43950942, 44559009, 301718908, 532784825, 6333542468, 1884657049

Basic calculations (n = 81672018)

Multiplication

n×y
n×2 163344036
n×3 245016054
n×4 326688072
n×5 408360090

Division

n÷y
n÷2 40836009
n÷3 27224006
n÷3 20418004.5
n÷5 16334403.6

Exponentiation

ny
n2 6670318524192324
n3 5.4477837457357E+23
n4 4.4493149214183E+31
n5 3.6338452834975E+39

Nth Root

y√n
2√n 9037.2572166559
3√n 433.86814217951
4√n 95.064489777498
5√n 38.230911916289

Divisors of 81672018

1, 2, 3, 6, 167, 334, 501, 1002, 81509, 163018, 244527, 489054, 13612003, 27224006, 40836009, 81672018

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 -81672017
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 81672018 can be divided by 16 positive divisors. The sum of these divisors (counting 81672018) is 1, the average is 0.0625.

Base conversion 81672018

Base System Value
2 Binary 100110111100011011101010010
3 Ternary 12200200100221120
4 Quaternary 10313203131102
5 Quinary 131402001033
6 Senary 12034303110
8 Octal 467433522
10 Decimal 81672018
12 Duodecimal 23427a96
16 Hexadecimal 4de3752
20 Vigesimal 15a900i
36 Base36 1cmij6

Cryptographic Hash Functions

md5 cae2d33b30c0a8008489566077540f35
sha1 cbc93a7804110c5c25cbce9eb2000d0860e83fdf
sha256 9dc9325b13a245c3c11baa9158cd991aae151e031b6d1b051293894609a78c63
sha512 2a63ab1e62964c6bca3766d65bd459459a1593ab023294e171692870b978b93fbedfb3697a7a22d44306f172d4c90d4eadfbcdb2fc36fb9c0e5bcdc1fc979be8
ripemd-160 f17e241f88b636d2686c646131f5a566a436c32b

81672018 as geometric shapes

Circle

Radius = n
Diameter 163344036
Circumference 513160423.50531
Area 2.0955423672707E+16

Sphere

Radius = n
Volume 2.2819623191932E+24
Surface area 8.3821694690826E+16
Circumference 513160423.50531

Square

Length = n
Perimeter 326688072
Area 6670318524192324
Diagonal 115501675.52198

Cube

Length = n
Surface area 40021911145153944
Volume 5.4477837457357E+23
Space diagonal 141460084.73268

Equilateral Triangle

Length = n
Perimeter 245016054
Area 2.8883326466422E+15
Altitude 70730042.36634

Triangular Pyramid

Length = n
Surface area 2.8883326466422E+15
Volume 6.4202747150793E+22
Height 38500558.507327