81639346 (number)

81639346 is an even 8-digits composite number following 81639345 and preceding 81639347. In scientific notation, it is written as 8.1639346 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 40819672 positive integers (up to 81639346) that are relatively prime to 81639346.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred thirty-nine thousand three hundred forty-six

Notation

Scientific notation 8.1639346 × 10^7
Engineering notation 8.1639346 × 10^6

Prime Factorization of 81639346

Prime Factorization 2 × 40819673

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81639346
Product of the distinct prime numbers

The prime factorization of 81639346 is 2 × 40819673. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 10, 40, 46, 984, 640, 1924, 2569, 19875, 78242, 743972, 556823, 2921930, 3981144, 86836993, 37175785, 914584945, 828928741, 3989840501, 7049365982

Basic calculations (n = 81639346)

Multiplication

n×y
n×2 163278692
n×3 244918038
n×4 326557384
n×5 408196730

Division

n÷y
n÷2 40819673
n÷3 27213115.333333
n÷3 20409836.5
n÷5 16327869.2

Exponentiation

ny
n2 6664982815307716
n3 5.4412483814296E+23
n4 4.4421995928347E+31
n5 3.6265826956049E+39

Nth Root

y√n
2√n 9035.4494077495
3√n 433.81027972372
4√n 95.054980972853
5√n 38.227852654855

Divisors of 81639346

1, 2, 40819673, 81639346

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81639345
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81639346 can be divided by 4 positive divisors. The sum of these divisors (counting 81639346) is 1, the average is 0.25.

Base conversion 81639346

Base System Value
2 Binary 100110111011011011110110010
3 Ternary 12200121201010111
4 Quaternary 10313123132302
5 Quinary 131344424341
6 Senary 12033451534
8 Octal 467333662
10 Decimal 81639346
12 Duodecimal 23410baa
16 Hexadecimal 4ddb7b2
20 Vigesimal 15a4i76
36 Base36 1cltbm

Cryptographic Hash Functions

md5 9d76a1ea8f69d5965a69d699a9860ff3
sha1 bab0084b12c7546c0e5a3105612e859f42c60ad3
sha256 6aa01a1ac6809e04ef8caa86b61d7b8ca734161d6f0a563a927aa85f9556b262
sha512 61b1de2f241dabd395fe91d63623e5bd826c5b9ea9357ccb7e56d96baecfad1a2a543a17db3f7d5bf16f68070f236c4ee31c96a9d4e34ed07796512d868a743d
ripemd-160 cf9d2677c74c8812d18c0df1524870214f04d3b6

81639346 as geometric shapes

Circle

Radius = n
Diameter 163278692
Circumference 512955139.27495
Area 2.0938661048873E+16

Sphere

Radius = n
Volume 2.2792247921942E+24
Surface area 8.3754644195492E+16
Circumference 512955139.27495

Square

Length = n
Perimeter 326557384
Area 6664982815307716
Diagonal 115455470.33647

Cube

Length = n
Surface area 39989896891846296
Volume 5.4412483814296E+23
Space diagonal 141403495.16869

Equilateral Triangle

Length = n
Perimeter 244918038
Area 2.8860222169216E+15
Altitude 70701747.584347

Triangular Pyramid

Length = n
Surface area 2.8860222169216E+15
Volume 6.412572714382E+22
Height 38485156.778823