81736689 is an odd 8-digits composite number following 81736688
and preceding 81736690 . In scientific notation, it is written as 8.1736689 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 51535440 positive integers (up to 81736689) that are relatively prime to 81736689.
81736689 has 8 divisors, whose sum is 83312128
The reverse of 81736689 is 98663718
Previous prime number is 1447
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighty-one million seven hundred thirty-six thousand six hundred eighty-nine
Scientific notation
8.1736689 × 10^7
Engineering notation
8.1736689 × 10^6
Prime Factorization
57 × 1447 × 991
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81736689
Product of the distinct prime numbers
The prime factorization of 81736689 is 57 × 1447 × 991.
Since it has a total of 3 prime factors.
6 , 5 , 99 , 98 , 216 , 223 , 6833 , 5845 , 20987 , 92544 , 435015 , 615095 , 8388192 , 6135593 , 47837191 , 81435995 , 798242571 , 195187496 , 1808796020 , 6217523669
n×2
163473378
n×3
245210067
n×4
326946756
n×5
408683445
n÷2
40868344.5
n÷3
27245563
n÷3
20434172.25
n÷5
16347337.8
n2
6680886328682721
n3
5.4607352809189E+23
n4
4.463424213678E+31
n5
3.6482551682847E+39
2 √n
9040.8345300641
3 √n
433.98262971387
4 √n
95.083303108717
5 √n
38.236964536589
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
-81736688
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 81736689 can be divided by 8 positive divisors.
The sum of these divisors (counting 81736689) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111110011001111110001
3
Ternary
12200210122122210
4
Quaternary
10313303033301
5
Quinary
131411033224
6
Senary
12035522333
8
Octal
467631761
10
Decimal
81736689
12
Duodecimal
234593a9
16
Hexadecimal
4df33f1
20
Vigesimal
15ah1e9
36
Base36
1cnwfl
md5
f9b3fa33a43bd4e09682e130511077ac
sha1
e226baa284e45306f36b363ff03337dfbf5df717
sha256
d141564e0a1e86df3eae1bf739b2badf4de5fc389171a0ad063bc5e4e087421f
sha512
b4530cdd3c6ba32e03de9cf9610878b91d8ad18286d8f533ca1e5724ca8677c7478cc2a16f7c9bba8cd466f9f95be7495c00937a250f8c2f2905a77a88f39aaa
ripemd-160
8082f97bcb90861d9974e1c6d5682239607733be
Diameter
163473378
Circumference
513566763.38231
Area
2.0988623409658E+16
Volume
2.2873874455645E+24
Surface area
8.3954493638632E+16
Circumference
513566763.38231
Perimeter
326946756
Area
6680886328682721
Diagonal
115593134.12727
Surface area
40085317972096326
Volume
5.4607352809189E+23
Space diagonal
141572098.19046
Perimeter
245210067
Area
2.8929086402177E+15
Altitude
70786049.095228
Surface area
2.8929086402177E+15
Volume
6.4355382456707E+22
Height
38531044.709091