81492495 is an odd 8-digits composite number following 81492494
and preceding 81492496 . In scientific notation, it is written as 8.1492495 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 37253664 positive integers (up to 81492495) that are relatively prime to 81492495.
81492495 has 8 divisors, whose sum is 111761280
The reverse of 81492495 is 59429418
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million four hundred ninety-two thousand four hundred ninety-five
Scientific notation
8.1492495 × 10^7
Engineering notation
8.1492495 × 10^6
Prime Factorization
35 × 3 × 776119
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81492495
Product of the distinct prime numbers
The prime factorization of 81492495 is 35 × 3 × 776119.
Since it has a total of 3 prime factors.
4 , 5 , 7 , 3 , 445 , 726 , 6730 , 6227 , 51386 , 71588 , 400337 , 901948 , 2777454 , 4040283 , 38631968 , 38729674 , 455574338 , 80374356 , 780188225 , 777153260
n×2
162984990
n×3
244477485
n×4
325969980
n×5
407462475
n÷2
40746247.5
n÷3
27164165
n÷3
20373123.75
n÷5
16298499
n2
6641026741325025
n3
5.411938385123E+23
n4
4.4103236178994E+31
n5
3.5940827538005E+39
2 √n
9027.3193695582
3 √n
433.55001425106
4 √n
95.012206424007
5 √n
38.214090070465
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
-81492494
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 81492495 can be divided by 8 positive divisors.
The sum of these divisors (counting 81492495) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110110111101000001111
3
Ternary
12200100020200120
4
Quaternary
10312313220033
5
Quinary
131330224440
6
Senary
12030400023
8
Octal
466675017
10
Decimal
81492495
12
Duodecimal
23360013
16
Hexadecimal
4db7a0f
20
Vigesimal
1596b4f
36
Base36
1cio0f
md5
d3b1cf27d5d49278d08f8a3fcf8cb02b
sha1
e0360986d1505cf1ae946cdba8caca4cb6b2581a
sha256
1093d6354bb9d6ba0e7b255b89167fe1340668ea7270d60e4dbf18118f3c3aff
sha512
1b49ea9527fd43b6b80dbf551a51b43dee1574920108fd9e690f6b8fdc0680afdc96c1a8e70dc5780acae5f483ff86b8657884ea74d0622b2b9857856e4dd553
ripemd-160
464623cfadbdd05ae1e8575e86df7a6f5e7eff35
Diameter
162984990
Circumference
512032447.22941
Area
2.086340082284E+16
Volume
2.2669474496511E+24
Surface area
8.345360329136E+16
Circumference
512032447.22941
Perimeter
325969980
Area
6641026741325025
Diagonal
115247791.66062
Surface area
39846160447950150
Volume
5.411938385123E+23
Space diagonal
141149141.77555
Perimeter
244477485
Area
2.8756489325996E+15
Altitude
70574570.887776
Surface area
2.8756489325996E+15
Volume
6.3780305524737E+22
Height
38415930.553541