81103431 (number)

81103431 is an odd 8-digits composite number following 81103430 and preceding 81103432. In scientific notation, it is written as 8.1103431 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 53907840 positive integers (up to 81103431) that are relatively prime to 81103431.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred three thousand four hundred thirty-one

Notation

Scientific notation 8.1103431 × 10^7
Engineering notation 8.1103431 × 10^6

Prime Factorization of 81103431

Prime Factorization 3 × 337 × 80221

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81103431
Product of the distinct prime numbers

The prime factorization of 81103431 is 3 × 337 × 80221. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 9, 23, 64, 486, 423, 4231, 8361, 19324, 7945, 675307, 84586, 6703455, 3769440, 40249047, 36510232, 904654516, 435485985, 6700989324, 4911148920

Basic calculations (n = 81103431)

Multiplication

n×y
n×2 162206862
n×3 243310293
n×4 324413724
n×5 405517155

Division

n÷y
n÷2 40551715.5
n÷3 27034477
n÷3 20275857.75
n÷5 16220686.2

Exponentiation

ny
n2 6577766519971761
n3 5.3347943308664E+23
n4 4.3267012391261E+31
n5 3.5091031540508E+39

Nth Root

y√n
2√n 9005.7443334796
3√n 432.8589573464
4√n 94.898600271446
5√n 38.177531609151

Divisors of 81103431

1, 3, 337, 1011, 80221, 240663, 27034477, 81103431

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81103430
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81103431 can be divided by 8 positive divisors. The sum of these divisors (counting 81103431) is 1, the average is 0.125.

Base conversion 81103431

Base System Value
2 Binary 100110101011000101001000111
3 Ternary 12122121110222210
4 Quaternary 10311120221013
5 Quinary 131230302211
6 Senary 12014154503
8 Octal 465305107
10 Decimal 81103431
12 Duodecimal 231b2a33
16 Hexadecimal 4d58a47
20 Vigesimal 156hibb
36 Base36 1cabt3

Cryptographic Hash Functions

md5 4cfe94606e79ea064e481123de6122d9
sha1 bcb3a8ddb1a734d037c8b618b681670c4a11f5d7
sha256 28ca14eb68f5fd3c15f13458fac6316a1424e58041d9fa4331720cbf87b6dfd9
sha512 57e4f8036de4db4ee90de1c5232245a463ca99241ef1ad9f7c725e6d98e8d7529421c85fcfe0fb76b2c97add1eaaf70f9a533ab2c6d875819f5f8004a9b3306e
ripemd-160 7dfbaf3805e9c9fd2641f86b89bde1a1267ae9e6

81103431 as geometric shapes

Circle

Radius = n
Diameter 162206862
Circumference 509587886.02105
Area 2.0664662976172E+16

Sphere

Radius = n
Volume 2.2346334237683E+24
Surface area 8.2658651904689E+16
Circumference 509587886.02105

Square

Length = n
Perimeter 324413724
Area 6577766519971761
Diagonal 114697572.07519

Cube

Length = n
Surface area 39466599119830566
Volume 5.3347943308664E+23
Space diagonal 140475263.16016

Equilateral Triangle

Length = n
Perimeter 243310293
Area 2.8482564532292E+15
Altitude 70237631.580078

Triangular Pyramid

Length = n
Surface area 2.8482564532292E+15
Volume 6.287115412652E+22
Height 38232524.025064