81639462 (number)

81639462 is an even 8-digits composite number following 81639461 and preceding 81639463. In scientific notation, it is written as 8.1639462 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 27005160 positive integers (up to 81639462) that are relatively prime to 81639462.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred thirty-nine thousand four hundred sixty-two

Notation

Scientific notation 8.1639462 × 10^7
Engineering notation 8.1639462 × 10^6

Prime Factorization of 81639462

Prime Factorization 2 × 3 × 131 × 103867

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81639462
Product of the distinct prime numbers

The prime factorization of 81639462 is 2 × 3 × 131 × 103867. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 9, 7, 42, 222, 764, 3675, 1800, 64580, 10730, 630884, 896317, 8294190, 558535, 29731194, 18802521, 739100086, 643412619, 4284847410, 6476437885

Basic calculations (n = 81639462)

Multiplication

n×y
n×2 163278924
n×3 244918386
n×4 326557848
n×5 408197310

Division

n÷y
n÷2 40819731
n÷3 27213154
n÷3 20409865.5
n÷5 16327892.4

Exponentiation

ny
n2 6665001755649444
n3 5.4412715756028E+23
n4 4.442224840281E+31
n5 3.6266084604358E+39

Nth Root

y√n
2√n 9035.4558269077
3√n 433.81048518825
4√n 95.055014738349
5√n 38.227863518314

Divisors of 81639462

1, 2, 3, 6, 131, 262, 393, 786, 103867, 207734, 311601, 623202, 13606577, 27213154, 40819731, 81639462

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 -81639461
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 81639462 can be divided by 16 positive divisors. The sum of these divisors (counting 81639462) is 1, the average is 0.0625.

Base conversion 81639462

Base System Value
2 Binary 100110111011011100000100110
3 Ternary 12200121201021210
4 Quaternary 10313123200212
5 Quinary 131344430322
6 Senary 12033452250
8 Octal 467334046
10 Decimal 81639462
12 Duodecimal 23411086
16 Hexadecimal 4ddb826
20 Vigesimal 15a4id2
36 Base36 1clteu

Cryptographic Hash Functions

md5 cd71ac513ea38ee1d978f007e2d5684a
sha1 1e3cfbb631640f02579fdc5497bc772b5d03d721
sha256 b9d96f3b7de3a029c3933728030fea2337c11f282d479c92ff3bbe3521137d29
sha512 b74a906d0b97a87bbd95137efe4c5553865924baf98532b0eb2c8b83a6cd37d28bd2e6d8260fdc8838ec3015a83ebbeaeacc2f855147c7ed599f005196300c0d
ripemd-160 3e1420c70dcd83ff064b846c22d55597ddfb1562

81639462 as geometric shapes

Circle

Radius = n
Diameter 163278924
Circumference 512955868.12445
Area 2.0938720551711E+16

Sphere

Radius = n
Volume 2.2792345077467E+24
Surface area 8.3754882206845E+16
Circumference 512955868.12445

Square

Length = n
Perimeter 326557848
Area 6665001755649444
Diagonal 115455634.38524

Cube

Length = n
Surface area 39990010533896664
Volume 5.4412715756028E+23
Space diagonal 141403696.08659

Equilateral Triangle

Length = n
Perimeter 244918386
Area 2.8860304183302E+15
Altitude 70701848.043294

Triangular Pyramid

Length = n
Surface area 2.8860304183302E+15
Volume 6.4126000489772E+22
Height 38485211.461748