81492564 is an even 8-digits composite number following 81492563
and preceding 81492565 . In scientific notation, it is written as 8.1492564 × 10^7.
The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors.
There are 27125280 positive integers (up to 81492564) that are relatively prime to 81492564.
81492564 has 24 divisors, whose sum is 190421728
The reverse of 81492564 is 46529418
Previous prime number is 8971
Is Prime? no Number parity even Number length 8 Sum of Digits 39 Digital Root 3
Name
eighty-one million four hundred ninety-two thousand five hundred sixty-four
Scientific notation
8.1492564 × 10^7
Engineering notation
8.1492564 × 10^6
Prime Factorization
2 × 2 × 3 × 8971 × 757
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
40746282 Product of the distinct prime numbers
The prime factorization of 81492564 is 2 × 2 × 3 × 8971 × 757.
Since it has a total of 5 prime factors.
6 , 7 , 14 , 46 , 582 , 495 , 2847 , 8035 , 61589 , 37041 , 563369 , 418133 , 5710048 , 9345421 , 53071976 , 95732081 , 495347669 , 337441668 , 4264581706 , 6442212506
n×2
162985128
n×3
244477692
n×4
325970256
n×5
407462820
n÷2
40746282
n÷3
27164188
n÷3
20373141
n÷5
16298512.8
n2
6641037987294096
n3
5.41195213206E+23
n4
4.4103385548683E+31
n5
3.5940979694427E+39
2 √n9027.3231912899
3 √n433.55013661383
4 √n95.012226535798
5 √n38.214096541666
1 , 2 , 3 , 4 , 6 , 12 , 757 , 1514 , 2271 , 3028 , 4542 , 8971 , 9084 , 17942 , 26913 , 35884 , 53826 , 107652 , 6791047 , 13582094 , 20373141 , 27164188 , 40746282 , 81492564
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
-81492563 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 81492564 can be divided by 24 positive divisors.
The sum of these divisors (counting 81492564) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110110110111101001010100
3
Ternary
12200100020210010
4
Quaternary
10312313221110
5
Quinary
131330230224
6
Senary
12030400220
8
Octal
466675124
10
Decimal
81492564
12
Duodecimal
23360070
16
Hexadecimal
4db7a54
20
Vigesimal
1596b84
36
Base36
1cio2c
md5
2eb55843a7360796c7a92404d055daf7
sha1
0df9e4b3672ad604158c389aa028c0129bacfdeb
sha256
18f44e131ac400911f79e32ce479fcc264e00c3e0f57fc665b3d57d30bc67034
sha512
e1ce4bfa7b54f3c0c61c21a56622b0249168b3b7e01f632fa71aa5c5134bd7a53afcb6eeb0ac33b7c855a8a941d7234737b3c8a7d0b08ff4db8081582b278a13
ripemd-160
205e51d43701f364397e0633f1e58c5fccf2359b
Diameter
162985128
Circumference
512032880.76919
Area
2.0863436153094E+16
Volume
2.2669532079546E+24
Surface area
8.3453744612376E+16
Circumference
512032880.76919
Perimeter
325970256
Area
6641037987294096
Diagonal
115247889.24136
Surface area
39846227923764576
Volume
5.41195213206E+23
Space diagonal
141149261.28706
Perimeter
244477692
Area
2.8756538022471E+15
Altitude
70574630.643529
Surface area
2.8756538022471E+15
Volume
6.3780467533943E+22
Height
38415963.080452