81361623 (number)

81361623 is an odd 8-digits composite number following 81361622 and preceding 81361624. In scientific notation, it is written as 8.1361623 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 46056576 positive integers (up to 81361623) that are relatively prime to 81361623.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred sixty-one thousand six hundred twenty-three

Notation

Scientific notation 8.1361623 × 10^7
Engineering notation 8.1361623 × 10^6

Prime Factorization of 81361623

Prime Factorization 3 × 7 × 107 × 36209

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81361623
Product of the distinct prime numbers

The prime factorization of 81361623 is 3 × 7 × 107 × 36209. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 69, 89, 541, 230, 6977, 1568, 2520, 23897, 84414, 193806, 652241, 6876535, 82933808, 59261773, 177391877, 700380785, 6448330008, 4225971090

Basic calculations (n = 81361623)

Multiplication

n×y
n×2 162723246
n×3 244084869
n×4 325446492
n×5 406808115

Division

n÷y
n÷2 40680811.5
n÷3 27120541
n÷3 20340405.75
n÷5 16272324.6

Exponentiation

ny
n2 6619713697194129
n3 5.3859065019904E+23
n4 4.382060943282E+31
n5 3.5653159043033E+39

Nth Root

y√n
2√n 9020.0677935368
3√n 433.31780490048
4√n 94.974037470968
5√n 38.201808276627

Divisors of 81361623

1, 3, 7, 21, 107, 321, 749, 2247, 36209, 108627, 253463, 760389, 3874363, 11623089, 27120541, 81361623

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 -81361622
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 81361623 can be divided by 16 positive divisors. The sum of these divisors (counting 81361623) is 1, the average is 0.0625.

Base conversion 81361623

Base System Value
2 Binary 100110110010111101011010111
3 Ternary 12200002121011110
4 Quaternary 10312113223113
5 Quinary 131312032443
6 Senary 12023510103
8 Octal 466275327
10 Decimal 81361623
12 Duodecimal 232b8333
16 Hexadecimal 4d97ad7
20 Vigesimal 158a413
36 Base36 1cfv13

Cryptographic Hash Functions

md5 0b7c366649390f6d572c2aa1ff2ecb3e
sha1 297d8f5a50012c74e448705854130149b01f8ac0
sha256 3afb97814406654bedc2e77cf2c7d584c4b53935a5cea782b2264609f70f4eaa
sha512 6f5d74eb21f4c04cb53a805d7ed2b747677150d276a42a468275e50bb820267eb4695f86b0a2441a6cb65dd14063a14bf91045c5684e33d85e4a0e2242747b93
ripemd-160 78b54f4adce9a4d82dd1f9b32ea1c50b50f352ea

81361623 as geometric shapes

Circle

Radius = n
Diameter 162723246
Circumference 511210154.20188
Area 2.0796443919973E+16

Sphere

Radius = n
Volume 2.2560432399433E+24
Surface area 8.3185775679891E+16
Circumference 511210154.20188

Square

Length = n
Perimeter 325446492
Area 6619713697194129
Diagonal 115062710.70329

Cube

Length = n
Surface area 39718282183164774
Volume 5.3859065019904E+23
Space diagonal 140922464.82226

Equilateral Triangle

Length = n
Perimeter 244084869
Area 2.866420113775E+15
Altitude 70461232.411132

Triangular Pyramid

Length = n
Surface area 2.866420113775E+15
Volume 6.3473516839903E+22
Height 38354236.901096