81498982 is an even 8-digits composite number following 81498981
and preceding 81498983 . In scientific notation, it is written as 8.1498982 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 38977752 positive integers (up to 81498982) that are relatively prime to 81498982.
81498982 has 8 divisors, whose sum is 127563696
The reverse of 81498982 is 28989418
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighty-one million four hundred ninety-eight thousand nine hundred eighty-two
Scientific notation
8.1498982 × 10^7
Engineering notation
8.1498982 × 10^6
Prime Factorization
2 × 23 × 1771717
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81498982
Product of the distinct prime numbers
The prime factorization of 81498982 is 2 × 23 × 1771717.
Since it has a total of 3 prime factors.
8 , 8 , 71 , 21 , 170 , 466 , 5693 , 7830 , 81957 , 38936 , 411424 , 498467 , 9683848 , 3274139 , 35006775 , 72163775 , 515803335 , 879092672 , 4371169850 , 7646715010
n×2
162997964
n×3
244496946
n×4
325995928
n×5
407494910
n÷2
40749491
n÷3
27166327.333333
n÷3
20374745.5
n÷5
16299796.4
n2
6642084067036324
n3
5.4132308982188E+23
n4
4.4117280753578E+31
n5
3.5955134700248E+39
2 √n
9027.6786606525
3 √n
433.56151782293
4 √n
95.014097168012
5 √n
38.214698437922
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
-81498981
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 81498982 can be divided by 8 positive divisors.
The sum of these divisors (counting 81498982) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111001001101100110
3
Ternary
12200100120120211
4
Quaternary
10312321031212
5
Quinary
131330431412
6
Senary
12030450034
8
Octal
466711546
10
Decimal
81498982
12
Duodecimal
2336391a
16
Hexadecimal
4db9366
20
Vigesimal
1597792
36
Base36
1cit0m
md5
8b85ac9516853c2a3d4e7949c7309857
sha1
ccc17950748e4fc274ebf47e1338e6aba5b8123e
sha256
d6f1e27811275bcb507645ead84b32819b18dec4c243496b99ea048fe6d9e439
sha512
ed9f58128a866675923aa98341f211263ddf86d2648b8222697c265635085fc1a4a004db97f91987aa5e4fd61685e37860ca24961176215abb542a1bb26d841c
ripemd-160
82f15de5d1d2a5240102f5bb3ace8c0fb089aae7
Diameter
162997964
Circumference
512073206.25249
Area
2.0866722509527E+16
Volume
2.2674888562706E+24
Surface area
8.3466890038109E+16
Circumference
512073206.25249
Perimeter
325995928
Area
6642084067036324
Diagonal
115256965.664
Surface area
39852504402217944
Volume
5.4132308982188E+23
Space diagonal
141160377.58914
Perimeter
244496946
Area
2.8761067680627E+15
Altitude
70580188.794571
Surface area
2.8761067680627E+15
Volume
6.3795537937651E+22
Height
38418988.554667