81497138 is an even 8-digits composite number following 81497137
and preceding 81497139 . In scientific notation, it is written as 8.1497138 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 40735780 positive integers (up to 81497138) that are relatively prime to 81497138.
81497138 has 8 divisors, whose sum is 122284080
The reverse of 81497138 is 83179418
Previous prime number is 6011
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million four hundred ninety-seven thousand one hundred thirty-eight
Scientific notation
8.1497138 × 10^7
Engineering notation
8.1497138 × 10^6
Prime Factorization
2 × 6011 × 6779
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81497138
Product of the distinct prime numbers
The prime factorization of 81497138 is 2 × 6011 × 6779.
Since it has a total of 3 prime factors.
2 , 7 , 58 , 98 , 630 , 675 , 2553 , 1102 , 19553 , 82987 , 363630 , 134963 , 782655 , 7659029 , 97701432 , 98216732 , 736992292 , 414111753 , 1300162792 , 7947087212
n×2
162994276
n×3
244491414
n×4
325988552
n×5
407485690
n÷2
40748569
n÷3
27165712.666667
n÷3
20374284.5
n÷5
16299427.6
n2
6641783502191044
n3
5.4128634664419E+23
n4
4.4113288089977E+31
n5
3.5951067271026E+39
2 √n
9027.5765297227
3 √n
433.55824787015
4 √n
95.013559715036
5 √n
38.214525506825
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
-81497137
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 81497138 can be divided by 8 positive divisors.
The sum of these divisors (counting 81497138) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111000110000110010
3
Ternary
12200100111001112
4
Quaternary
10312320300302
5
Quinary
131330402023
6
Senary
12030433322
8
Octal
466706062
10
Decimal
81497138
12
Duodecimal
23362842
16
Hexadecimal
4db8c32
20
Vigesimal
15972gi
36
Base36
1cirle
md5
44a7f15cf8ba349a138ecf07c734e8b8
sha1
fa9d3b956667460dd32288c6b02af7a0499d3af3
sha256
3bb8d92a86fad45ab5030c14bd316413a408d00d922e5b8cca336fa215e2d7f6
sha512
7d50b756dc142a64112c6404819dea220972a889d0afc4181df5c774e98d687459d9de0678da62033fff5481eae71101763e444a15b3879aab305d543921f176
ripemd-160
8a227b35c8799d8989df1b9641e6277094895f85
Diameter
162994276
Circumference
512061620.05879
Area
2.0865778257217E+16
Volume
2.2673349468078E+24
Surface area
8.3463113028869E+16
Circumference
512061620.05879
Perimeter
325988552
Area
6641783502191044
Diagonal
115254357.85419
Surface area
39850701013146264
Volume
5.4128634664419E+23
Space diagonal
141157183.68745
Perimeter
244491414
Area
2.8759766196669E+15
Altitude
70578591.843726
Surface area
2.8759766196669E+15
Volume
6.3791207712633E+22
Height
38418119.284731