81736213 is an odd 8-digits composite number following 81736212
and preceding 81736214 . In scientific notation, it is written as 8.1736213 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 75368448 positive integers (up to 81736213) that are relatively prime to 81736213.
81736213 has 8 divisors, whose sum is 88117400
The reverse of 81736213 is 31263718
Previous prime number is 1129
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million seven hundred thirty-six thousand two hundred thirteen
Scientific notation
8.1736213 × 10^7
Engineering notation
8.1736213 × 10^6
Prime Factorization
13 × 1129 × 5569
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81736213
Product of the distinct prime numbers
The prime factorization of 81736213 is 13 × 1129 × 5569.
Since it has a total of 3 prime factors.
2 , 2 , 54 , 38 , 714 , 344 , 8456 , 6494 , 1322 , 49339 , 426849 , 926887 , 2172289 , 3332776 , 31445890 , 24138871 , 542847876 , 907657016 , 8954500320 , 7362740311
n×2
163472426
n×3
245208639
n×4
326944852
n×5
408681065
n÷2
40868106.5
n÷3
27245404.333333
n÷3
20434053.25
n÷5
16347242.6
n2
6680808515581369
n3
5.4606398784177E+23
n4
4.4633202421865E+31
n5
3.6481489400256E+39
2 √n
9040.8082050224
3 √n
433.98178726831
4 √n
95.083164677152
5 √n
38.236920001295
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
-81736212
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 81736213 can be divided by 8 positive divisors.
The sum of these divisors (counting 81736213) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111110011001000010101
3
Ternary
12200210122000011
4
Quaternary
10313303020111
5
Quinary
131411024323
6
Senary
12035520221
8
Octal
467631025
10
Decimal
81736213
12
Duodecimal
23459071
16
Hexadecimal
4df3215
20
Vigesimal
15ah0ad
36
Base36
1cnw2d
md5
9bfd0de30dd79c1c9939af9a1bbf24de
sha1
53d3febecce421a7d4bd4d3c9c11bdb8792b606d
sha256
fee0bad2cbd3187247f2994adfa6358f3ef463abf7c9940f782fc206649b6fbe
sha512
ad409f7731e4cc4097d0a89ac87c5138652bfd51ee7242085307481a7bea0c6b139a3ed53b338d84f7e40b252d57cb6d85218920b44c93c45d0a92215e72efad
ripemd-160
33d40fa1aaba94b0aa3d094cdd36b4277a0c5e9b
Diameter
163472426
Circumference
513563772.5861
Area
2.0988378952591E+16
Volume
2.2873474834582E+24
Surface area
8.3953515810362E+16
Circumference
513563772.5861
Perimeter
326944852
Area
6680808515581369
Diagonal
115592460.96162
Surface area
40084851093488214
Volume
5.4606398784177E+23
Space diagonal
141571273.73427
Perimeter
245208639
Area
2.8928749461564E+15
Altitude
70785636.867136
Surface area
2.8928749461564E+15
Volume
6.4354258127448E+22
Height
38530820.320539