81031844 (number)

81031844 is an even 8-digits composite number following 81031843 and preceding 81031845. In scientific notation, it is written as 8.1031844 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 40449024 positive integers (up to 81031844) that are relatively prime to 81031844.

Interesting facts

Basic properties

Name

Name eighty-one million thirty-one thousand eight hundred forty-four

Notation

Scientific notation 8.1031844 × 10^7
Engineering notation 8.1031844 × 10^6

Prime Factorization of 81031844

Prime Factorization 2 × 2 × 617 × 32833

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40515922
Product of the distinct prime numbers

The prime factorization of 81031844 is 2 × 2 × 617 × 32833. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 8, 17, 47, 862, 426, 2554, 7513, 40525, 56126, 405642, 759759, 8870140, 5202940, 94114600, 78265744, 574131736, 672643029, 4987353798, 3397426657

Basic calculations (n = 81031844)

Multiplication

n×y
n×2 162063688
n×3 243095532
n×4 324127376
n×5 405159220

Division

n÷y
n÷2 40515922
n÷3 27010614.666667
n÷3 20257961
n÷5 16206368.8

Exponentiation

ny
n2 6566159742040336
n3 5.3206803189609E+23
n4 4.3114453757991E+31
n5 3.4936436910628E+39

Nth Root

y√n
2√n 9001.7689372701
3√n 432.7315636578
4√n 94.877652465004
5√n 38.170789649248

Divisors of 81031844

1, 2, 4, 617, 1234, 2468, 32833, 65666, 131332, 20257961, 40515922, 81031844

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81031843
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81031844 can be divided by 12 positive divisors. The sum of these divisors (counting 81031844) is 1, the average is 0.083333333333333.

Base conversion 81031844

Base System Value
2 Binary 100110101000111001010100100
3 Ternary 12122110211210102
4 Quaternary 10311013022210
5 Quinary 131221004334
6 Senary 12012443232
8 Octal 465071244
10 Decimal 81031844
12 Duodecimal 23179518
16 Hexadecimal 4d472a4
20 Vigesimal 1568jc4
36 Base36 1c8skk

Cryptographic Hash Functions

md5 76971677ed1ef651677b2a6c3dff5270
sha1 e6672078c8205762e97297c2dc63a44f4d89c4c5
sha256 081b5d83ac454e8c391b3f02e5bdd4cf518c6d12474c99a8bcdb079143b35e32
sha512 aea3a0a8f3682992a8c329e0b32890e8cc19d2a04cf3a22eb11f74dbfa6ee8c83ce6c86f2a591b5deb72d8c8609f7b55b9b90e9976194c09463ad8e88bc238ea
ripemd-160 8cf8a4a02895c1a3524807f46b9c88b21584dd8f

81031844 as geometric shapes

Circle

Radius = n
Diameter 162063688
Circumference 509138091.63447
Area 2.0628199207891E+16

Sphere

Radius = n
Volume 2.2287213602863E+24
Surface area 8.2512796831564E+16
Circumference 509138091.63447

Square

Length = n
Perimeter 324127376
Area 6566159742040336
Diagonal 114596332.7689

Cube

Length = n
Surface area 39396958452242016
Volume 5.3206803189609E+23
Space diagonal 140351270.839

Equilateral Triangle

Length = n
Perimeter 243095532
Area 2.8432305709568E+15
Altitude 70175635.419498

Triangular Pyramid

Length = n
Surface area 2.8432305709568E+15
Volume 6.2704818901051E+22
Height 38198777.589634