81640650 (number)

81640650 is an even 8-digits composite number following 81640649 and preceding 81640651. In scientific notation, it is written as 8.1640650 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors. There are 17222400 positive integers (up to 81640650) that are relatively prime to 81640650.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty thousand six hundred fifty

Notation

Scientific notation 8.1640650 × 10^7
Engineering notation 8.1640650 × 10^6

Prime Factorization of 81640650

Prime Factorization 2 × 75 × 13 × 7 × 5981

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81640650
Product of the distinct prime numbers

The prime factorization of 81640650 is 2 × 75 × 13 × 7 × 5981. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 10, 18, 4, 163, 72, 9072, 205, 71875, 93590, 434917, 556174, 7759196, 6116524, 63773736, 28497087, 244336939, 41456584, 139904361, 8808714837

Basic calculations (n = 81640650)

Multiplication

n×y
n×2 163281300
n×3 244921950
n×4 326562600
n×5 408203250

Division

n÷y
n÷2 40820325
n÷3 27213550
n÷3 20410162.5
n÷5 16328130

Exponentiation

ny
n2 6665195732422500
n3 5.441509119722E+23
n4 4.4424834151503E+31
n5 3.6268723362709E+39

Nth Root

y√n
2√n 9035.5215676794
3√n 433.81258941719
4√n 95.055360541526
5√n 38.227974774406

Divisors of 81640650

1, 2, 7, 13, 14, 26, 75, 91, 150, 182, 525, 975, 1050, 1950, 5981, 6825, 11962, 13650, 41867, 77753, 83734, 155506, 448575, 544271, 897150, 1088542, 3140025, 5831475, 6280050, 11662950, 40820325, 81640650

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81640649
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81640650 can be divided by 32 positive divisors. The sum of these divisors (counting 81640650) is 1, the average is 0.03125.

Base conversion 81640650

Base System Value
2 Binary 100110111011011110011001010
3 Ternary 12200121202220210
4 Quaternary 10313123303022
5 Quinary 131400000100
6 Senary 12033501550
8 Octal 467336312
10 Decimal 81640650
12 Duodecimal 234118b6
16 Hexadecimal 4ddbcca
20 Vigesimal 15a51ca
36 Base36 1clubu

Cryptographic Hash Functions

md5 9478f47330ea7ed2365edade3033e743
sha1 ce2c09f64344a59ccb65a97d2357702a5a3719ba
sha256 9c62013769f0feb6865444b735534dd3bb171f566c855bfa72e51a772556821e
sha512 a3a6a050138fdfc7f78ed6f575ac42ad1bef736acd7a76b691b5eef5ebc9665a2c411919d23cc17f89d8cc953693a22696c61ac5a1a4f1009ec662b85f7df7ca
ripemd-160 5e1864578b56f11e54a62b34d603acfd29c7aa52

81640650 as geometric shapes

Circle

Radius = n
Diameter 163281300
Circumference 512963332.54859
Area 2.0939329947717E+16

Sphere

Radius = n
Volume 2.2793340099947E+24
Surface area 8.3757319790866E+16
Circumference 512963332.54859

Square

Length = n
Perimeter 326562600
Area 6665195732422500
Diagonal 115457314.47096

Cube

Length = n
Surface area 39991174394535000
Volume 5.441509119722E+23
Space diagonal 141405753.76295

Equilateral Triangle

Length = n
Perimeter 244921950
Area 2.8861144127368E+15
Altitude 70702876.881474

Triangular Pyramid

Length = n
Surface area 2.8861144127368E+15
Volume 6.4128799974064E+22
Height 38485771.490318