81724650 (number)

81724650 is an even 8-digits composite number following 81724649 and preceding 81724651. In scientific notation, it is written as 8.1724650 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 18678240 positive integers (up to 81724650) that are relatively prime to 81724650.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-four thousand six hundred fifty

Notation

Scientific notation 8.1724650 × 10^7
Engineering notation 8.1724650 × 10^6

Prime Factorization of 81724650

Prime Factorization 2 × 35 × 15 × 7 × 11119

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81724650
Product of the distinct prime numbers

The prime factorization of 81724650 is 2 × 35 × 15 × 7 × 11119. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 4, 3, 74, 454, 352, 6626, 3787, 76206, 30226, 555390, 190762, 8790142, 6984945, 380468, 67197512, 343129489, 246848572, 9085390668, 4289551324

Basic calculations (n = 81724650)

Multiplication

n×y
n×2 163449300
n×3 245173950
n×4 326898600
n×5 408623250

Division

n÷y
n÷2 40862325
n÷3 27241550
n÷3 20431162.5
n÷5 16344930

Exponentiation

ny
n2 6678918417622500
n3 5.4583227005875E+23
n4 4.4607951229257E+31
n5 3.6455692014281E+39

Nth Root

y√n
2√n 9040.1686931163
3√n 433.96132156172
4√n 95.079801709492
5√n 38.235838085432

Divisors of 81724650

1, 2, 7, 14, 15, 30, 35, 70, 105, 210, 245, 490, 525, 1050, 3675, 7350, 11119, 22238, 77833, 155666, 166785, 333570, 389165, 778330, 1167495, 2334990, 2724155, 5448310, 5837475, 11674950, 40862325, 81724650

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 -81724649
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 81724650 can be divided by 32 positive divisors. The sum of these divisors (counting 81724650) is 1, the average is 0.03125.

Base conversion 81724650

Base System Value
2 Binary 100110111110000010011101010
3 Ternary 12200210001010220
4 Quaternary 10313300103222
5 Quinary 131410142100
6 Senary 12035350510
8 Octal 467602352
10 Decimal 81724650
12 Duodecimal 23452436
16 Hexadecimal 4df04ea
20 Vigesimal 15afbca
36 Base36 1cnn56

Cryptographic Hash Functions

md5 4d666a682c53e995dd3dbf79330472ae
sha1 6337b3c425c8936cf4f8e0159d3afbc89266e126
sha256 1ece8062bddba80407185761d9889e9c267d4e0b7d5b6b2708bd518c80ecedfc
sha512 9dd4911047ef4495b942960d4ddbe3e790baf8fd4f33db7313ee94c07e4f7b019576f4578e335a329eb01b14588aa3db0ffcdb2e1e5940eda2c27548c1a95a52
ripemd-160 435f86f57bb5a7b6e006fe2f1de28515e8ec37a2

81724650 as geometric shapes

Circle

Radius = n
Diameter 163449300
Circumference 513491120.11439
Area 2.0982441034728E+16

Sphere

Radius = n
Volume 2.2863768662784E+24
Surface area 8.3929764138914E+16
Circumference 513491120.11439

Square

Length = n
Perimeter 326898600
Area 6678918417622500
Diagonal 115576108.41019

Cube

Length = n
Surface area 40073510505735000
Volume 5.4583227005875E+23
Space diagonal 141551246.03078

Equilateral Triangle

Length = n
Perimeter 245173950
Area 2.8920565097324E+15
Altitude 70775623.015392

Triangular Pyramid

Length = n
Surface area 2.8920565097324E+15
Volume 6.4326949924832E+22
Height 38525369.470065