81362486 is an even 8-digits composite number following 81362485
and preceding 81362487 . In scientific notation, it is written as 8.1362486 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 40185600 positive integers (up to 81362486) that are relatively prime to 81362486.
81362486 has 16 divisors, whose sum is 123538608
The reverse of 81362486 is 68426318
Previous prime number is 521
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million three hundred sixty-two thousand four hundred eighty-six
Scientific notation
8.1362486 × 10^7
Engineering notation
8.1362486 × 10^6
Prime Factorization
2 × 113 × 521 × 691
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81362486
Product of the distinct prime numbers
The prime factorization of 81362486 is 2 × 113 × 521 × 691.
Since it has a total of 4 prime factors.
1 , 2 , 86 , 15 , 804 , 865 , 3408 , 5476 , 16940 , 66733 , 264234 , 847489 , 8406232 , 3971055 , 5584122 , 24941324 , 367041803 , 402422653 , 5758140018 , 8495754082
n×2
162724972
n×3
244087458
n×4
325449944
n×5
406812430
n÷2
40681243
n÷3
27120828.666667
n÷3
20340621.5
n÷5
16272497.2
n2
6619854128100196
n3
5.3860778881959E+23
n4
4.3822468677325E+31
n5
3.5655049942443E+39
2 √n
9020.1156311879
3 √n
433.31933695753
4 √n
94.974289316572
5 √n
38.201889317342
1 , 2 , 113 , 226 , 521 , 691 , 1042 , 1382 , 58873 , 78083 , 117746 , 156166 , 360011 , 720022 , 40681243 , 81362486
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81362485
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81362486 can be divided by 16 positive divisors.
The sum of these divisors (counting 81362486) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010111111000110110
3
Ternary
12200002122100102
4
Quaternary
10312113320312
5
Quinary
131312044421
6
Senary
12023514102
8
Octal
466277066
10
Decimal
81362486
12
Duodecimal
232b8932
16
Hexadecimal
4d97e36
20
Vigesimal
158a646
36
Base36
1cfvp2
md5
4ec59c0a043529c222b9d59c2c7b16d8
sha1
924cd8fc068a290fb38277764c738e5f2d562d77
sha256
48f842a42f2296ba7b6d4d6b96320f372cc09153120de756b189ba56a11b48e6
sha512
a2d197789e55eb9b0e8a1f3ba3fe9c3a150c96b90d2efc5027343dbdc59298cac1094d727b22728d54c7575cc7d2ce88bc05016a2589fdddc2c6e12ac00ef313
ripemd-160
c68fe5e1ea71b607433db24755f5e257e5ec09e7
Diameter
162724972
Circumference
511215576.5908
Area
2.0796885096676E+16
Volume
2.2561150300292E+24
Surface area
8.3187540386703E+16
Circumference
511215576.5908
Perimeter
325449944
Area
6619854128100196
Diagonal
115063931.16959
Surface area
39719124768601176
Volume
5.3860778881959E+23
Space diagonal
140923959.58211
Perimeter
244087458
Area
2.866480922141E+15
Altitude
70461979.791056
Surface area
2.866480922141E+15
Volume
6.3475536645705E+22
Height
38354643.723197