81105842 (number)

81105842 is an even 8-digits composite number following 81105841 and preceding 81105843. In scientific notation, it is written as 8.1105842 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 40524772 positive integers (up to 81105842) that are relatively prime to 81105842.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred five thousand eight hundred forty-two

Notation

Scientific notation 8.1105842 × 10^7
Engineering notation 8.1105842 × 10^6

Prime Factorization of 81105842

Prime Factorization 2 × 1523 × 26627

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81105842
Product of the distinct prime numbers

The prime factorization of 81105842 is 2 × 1523 × 26627. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 6, 58, 38, 592, 424, 3379, 8293, 68796, 37218, 945701, 21770, 6917324, 7568423, 46302362, 69324530, 668039253, 319142221, 4839223895, 9630083905

Basic calculations (n = 81105842)

Multiplication

n×y
n×2 162211684
n×3 243317526
n×4 324423368
n×5 405529210

Division

n÷y
n÷2 40552921
n÷3 27035280.666667
n÷3 20276460.5
n÷5 16221168.4

Exponentiation

ny
n2 6578157606528964
n3 5.3352701148624E+23
n4 4.3272157496335E+31
n5 3.5096247688969E+39

Nth Root

y√n
2√n 9005.8781914925
3√n 432.86324657146
4√n 94.899305537462
5√n 38.177758590755

Divisors of 81105842

1, 2, 1523, 3046, 26627, 53254, 40552921, 81105842

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 -81105841
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 81105842 can be divided by 8 positive divisors. The sum of these divisors (counting 81105842) is 1, the average is 0.125.

Base conversion 81105842

Base System Value
2 Binary 100110101011001001110110010
3 Ternary 12122121121022002
4 Quaternary 10311121032302
5 Quinary 131230341332
6 Senary 12014214002
8 Octal 465311662
10 Decimal 81105842
12 Duodecimal 231b4302
16 Hexadecimal 4d593b2
20 Vigesimal 156i4c2
36 Base36 1cado2

Cryptographic Hash Functions

md5 a59c75bbaddf308a43760713c3c8e804
sha1 55ff35a9223b153057f59a6415e57360d399d271
sha256 ad900098f4b60f081b973748cac81265461900d50b7406e7af3af0e56263830c
sha512 bf2d4071639938a99f71fecf95b6b64510d4587ccfdb784aad528302e74ed17207127e8434388bd4e0c83a0b0bba5bc255fa3ad82494126546f9a5d8217fb266
ripemd-160 464702b9eed5c02593a7195a82b7fdff6f39948d

81105842 as geometric shapes

Circle

Radius = n
Diameter 162211684
Circumference 509603034.78083
Area 2.0665891610827E+16

Sphere

Radius = n
Volume 2.2348327197025E+24
Surface area 8.2663566443309E+16
Circumference 509603034.78083

Square

Length = n
Perimeter 324423368
Area 6578157606528964
Diagonal 114700981.74409

Cube

Length = n
Surface area 39468945639173784
Volume 5.3352701148624E+23
Space diagonal 140479439.13465

Equilateral Triangle

Length = n
Perimeter 243317526
Area 2.848425798676E+15
Altitude 70239719.567327

Triangular Pyramid

Length = n
Surface area 2.848425798676E+15
Volume 6.2876761294685E+22
Height 38233660.581363