81491104 (number)

81491104 is an even 8-digits composite number following 81491103 and preceding 81491105. In scientific notation, it is written as 8.1491104 × 10^7. The sum of its digits is 28. It has a total of 7 prime factors and 24 positive divisors. There are 39975936 positive integers (up to 81491104) that are relatively prime to 81491104.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-one thousand one hundred four

Notation

Scientific notation 8.1491104 × 10^7
Engineering notation 8.1491104 × 10^6

Prime Factorization of 81491104

Prime Factorization 2 × 2 × 2 × 2 × 2 × 53 × 48049

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 5093194
Product of the distinct prime numbers

The prime factorization of 81491104 is 2 × 2 × 2 × 2 × 2 × 53 × 48049. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 8, 54, 9, 7, 526, 8347, 6216, 4468, 59488, 302586, 529342, 3502552, 4607112, 48009978, 88060956, 262659098, 53576798, 3117044679, 8793776600

Basic calculations (n = 81491104)

Multiplication

n×y
n×2 162982208
n×3 244473312
n×4 325964416
n×5 407455520

Division

n÷y
n÷2 40745552
n÷3 27163701.333333
n÷3 20372776
n÷5 16298220.8

Exponentiation

ny
n2 6640800031138816
n3 5.4116612598074E+23
n4 4.4100225053573E+31
n5 3.5937760262641E+39

Nth Root

y√n
2√n 9027.2423253173
3√n 433.54754747379
4√n 95.011800979233
5√n 38.213959613882

Divisors of 81491104

1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 48049, 96098, 192196, 384392, 768784, 1537568, 2546597, 5093194, 10186388, 20372776, 40745552, 81491104

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81491103
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81491104 can be divided by 24 positive divisors. The sum of these divisors (counting 81491104) is 1, the average is 0.041666666666667.

Base conversion 81491104

Base System Value
2 Binary 100110110110111010010100000
3 Ternary 12200100011210001
4 Quaternary 10312313102200
5 Quinary 131330203404
6 Senary 12030345344
8 Octal 466672240
10 Decimal 81491104
12 Duodecimal 2335b254
16 Hexadecimal 4db74a0
20 Vigesimal 15967f4
36 Base36 1cimxs

Cryptographic Hash Functions

md5 9cda2d87a1b8cebe4ec637449f8b82ca
sha1 a048c52ec9fc4c8c0dd3870ee588eb8a0cf5ca75
sha256 18954ef7472a8b196b77810a13bc8b33d8cb6c93841b1dc1d4f0bf694b9ff889
sha512 57b03a590ec78526ffb911d2fa32b0c0d952ef6cb7c2c0d0673900856c67f3843973dfcf6de04d61644483cdb20c6ec205ed7144ca058412837b349ff895591d
ripemd-160 bbb3ac40e40b6e9dbf562ebfde74e34bb976555c

81491104 as geometric shapes

Circle

Radius = n
Diameter 162982208
Circumference 512023707.31864
Area 2.0862688591785E+16

Sphere

Radius = n
Volume 2.2668313676703E+24
Surface area 8.3450754367138E+16
Circumference 512023707.31864

Square

Length = n
Perimeter 325964416
Area 6640800031138816
Diagonal 115245824.48956

Cube

Length = n
Surface area 39844800186832896
Volume 5.4116612598074E+23
Space diagonal 141146732.49288

Equilateral Triangle

Length = n
Perimeter 244473312
Area 2.8755507642094E+15
Altitude 70573366.24644

Triangular Pyramid

Length = n
Surface area 2.8755507642094E+15
Volume 6.3777039571572E+22
Height 38415274.829852