81488654 (number)

81488654 is an even 8-digits composite number following 81488653 and preceding 81488655. In scientific notation, it is written as 8.1488654 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 37487712 positive integers (up to 81488654) that are relatively prime to 81488654.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-eight thousand six hundred fifty-four

Notation

Scientific notation 8.1488654 × 10^7
Engineering notation 8.1488654 × 10^6

Prime Factorization of 81488654

Prime Factorization 2 × 13 × 317 × 9887

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81488654
Product of the distinct prime numbers

The prime factorization of 81488654 is 2 × 13 × 317 × 9887. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 5, 10, 58, 369, 788, 2659, 60, 63600, 96073, 215483, 98762, 8446721, 3013979, 60327839, 78326138, 217793465, 562485482, 18195626, 8375822106

Basic calculations (n = 81488654)

Multiplication

n×y
n×2 162977308
n×3 244465962
n×4 325954616
n×5 407443270

Division

n÷y
n÷2 40744327
n÷3 27162884.666667
n÷3 20372163.5
n÷5 16297730.8

Exponentiation

ny
n2 6640400730731716
n3 5.4111731756794E+23
n4 4.4094921864702E+31
n5 3.5932358309898E+39

Nth Root

y√n
2√n 9027.106623941
3√n 433.54320261452
4√n 95.011086847489
5√n 38.213729833397

Divisors of 81488654

1, 2, 13, 26, 317, 634, 4121, 8242, 9887, 19774, 128531, 257062, 3134179, 6268358, 40744327, 81488654

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 -81488653
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 81488654 can be divided by 16 positive divisors. The sum of these divisors (counting 81488654) is 1, the average is 0.0625.

Base conversion 81488654

Base System Value
2 Binary 100110110110110101100001110
3 Ternary 12200100001102022
4 Quaternary 10312312230032
5 Quinary 131330114104
6 Senary 12030330142
8 Octal 466665416
10 Decimal 81488654
12 Duodecimal 23359952
16 Hexadecimal 4db6b0e
20 Vigesimal 15961ce
36 Base36 1cil1q

Cryptographic Hash Functions

md5 89106c32b29d3ab4cd65dc2addb9cdb0
sha1 ef11391572d71c4524d7dec5bbcea859b77bcf93
sha256 2afe52ca1482e65f118bfea43cbba83ee769dcd287a7b9523ff7d4b7be6949da
sha512 042a82e9cd93bd33c02ed982e4e62690dcb35bf10d7da2c61893c53bf6e8a981142e1bd5d2fe5258612576b2277caca5032312784f11b4092bf9776741a3e893
ripemd-160 32dcd31cf229202f38a2220ad3d97ae21a093670

81488654 as geometric shapes

Circle

Radius = n
Diameter 162977308
Circumference 512008313.51464
Area 2.0861434152559E+16

Sphere

Radius = n
Volume 2.2666269194689E+24
Surface area 8.3445736610236E+16
Circumference 512008313.51464

Square

Length = n
Perimeter 325954616
Area 6640400730731716
Diagonal 115242359.66633

Cube

Length = n
Surface area 39842404384390296
Volume 5.4111731756794E+23
Space diagonal 141142488.9684

Equilateral Triangle

Length = n
Perimeter 244465962
Area 2.8753778620612E+15
Altitude 70571244.4842

Triangular Pyramid

Length = n
Surface area 2.8753778620612E+15
Volume 6.3771287444961E+22
Height 38414119.888776