81492037 is an odd 8-digits composite number following 81492036
and preceding 81492038 . In scientific notation, it is written as 8.1492037 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 74083660 positive integers (up to 81492037) that are relatively prime to 81492037.
81492037 has 4 divisors, whose sum is 88900416
The reverse of 81492037 is 73029418
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million four hundred ninety-two thousand thirty-seven
Scientific notation
8.1492037 × 10^7
Engineering notation
8.1492037 × 10^6
Prime Factorization
11 × 7408367
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81492037
Product of the distinct prime numbers
The prime factorization of 81492037 is 11 × 7408367.
Since it has a total of 2 prime factors.
10 , 8 , 76 , 81 , 839 , 633 , 781 , 6066 , 74722 , 61245 , 506882 , 5367 , 3455398 , 9015691 , 12285439 , 44907118 , 965580900 , 955830920 , 4800607192 , 6449310033
n×2
162984074
n×3
244476111
n×4
325968148
n×5
407460185
n÷2
40746018.5
n÷3
27164012.333333
n÷3
20373009.25
n÷5
16298407.4
n2
6640952094409369
n3
5.4118471379284E+23
n4
4.410224472024E+31
n5
3.5939817585249E+39
2 √n
9027.2940020806
3 √n
433.54920204424
4 √n
95.012072928026
5 √n
38.21404711659
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81492036
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81492037 can be divided by 4 positive divisors.
The sum of these divisors (counting 81492037) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110110111100001000101
3
Ternary
12200100020001121
4
Quaternary
10312313201011
5
Quinary
131330221122
6
Senary
12030353541
8
Octal
466674105
10
Decimal
81492037
12
Duodecimal
2335b8b1
16
Hexadecimal
4db7845
20
Vigesimal
1596a1h
36
Base36
1cinnp
md5
62e46e2808bd5fc4ee2aad69f24be976
sha1
c5b3dced4be0c32db42a39a645e49af1e5281846
sha256
49ebdf10309caa2dcb17bac287683769e759fdd4686f920f077be1d402ee79c5
sha512
9495e14f18d0a6be2ffc9fb8b61ac57425aaea251bc20cf6bd58a31ecf781072017234d7ce2f2b3cf3eecd6536f5808b55c8429ae6cc5d65a471b5944bcce27a
ripemd-160
a7ef2643d36ea2da046c6a2847a06fe88d4d2094
Diameter
162984074
Circumference
512029569.53054
Area
2.0863166312638E+16
Volume
2.2669092281156E+24
Surface area
8.3452665250553E+16
Circumference
512029569.53054
Perimeter
325968148
Area
6640952094409369
Diagonal
115247143.95081
Surface area
39845712566456214
Volume
5.4118471379284E+23
Space diagonal
141148348.49628
Perimeter
244476111
Area
2.875616609537E+15
Altitude
70574174.248141
Surface area
2.875616609537E+15
Volume
6.3779230166236E+22
Height
38415714.65027