81369319 is an odd 8-digits composite number following 81369318
and preceding 81369320 . In scientific notation, it is written as 8.1369319 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 79990120 positive integers (up to 81369319) that are relatively prime to 81369319.
81369319 has 4 divisors, whose sum is 82748520
The reverse of 81369319 is 91396318
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million three hundred sixty-nine thousand three hundred nineteen
Scientific notation
8.1369319 × 10^7
Engineering notation
8.1369319 × 10^6
Prime Factorization
59 × 1379141
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81369319
Product of the distinct prime numbers
The prime factorization of 81369319 is 59 × 1379141.
Since it has a total of 2 prime factors.
10 , 6 , 57 , 64 , 892 , 1000 , 6840 , 6621 , 22550 , 38028 , 142780 , 795646 , 9816184 , 6151461 , 39596125 , 83321990 , 89223233 , 196259178 , 3248364024 , 6985676056
n×2
162738638
n×3
244107957
n×4
325477276
n×5
406846595
n÷2
40684659.5
n÷3
27123106.333333
n÷3
20342329.75
n÷5
16273863.8
n2
6620966074523761
n3
5.387435006061E+23
n4
4.3837191759995E+31
n5
3.5670024403832E+39
2 √n
9020.4943877816
3 √n
433.33146698736
4 √n
94.976283291049
5 √n
38.202530951476
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
-81369318
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 81369319 can be divided by 4 positive divisors.
The sum of these divisors (counting 81369319) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110011001100011100111
3
Ternary
12200002222201111
4
Quaternary
10312121203213
5
Quinary
131312304234
6
Senary
12024005451
8
Octal
466314347
10
Decimal
81369319
12
Duodecimal
23300887
16
Hexadecimal
4d998e7
20
Vigesimal
158b35j
36
Base36
1cg0yv
md5
7dbf12013cdc0a8b8ba9f6fbd4dca4d4
sha1
3ebe9c478d83e4ec143b4f326ddb78eff9ef472f
sha256
c593892389a08c0b11ba0f58382d3eb3c5ff4cbd473e72b5dc2118097d625fcf
sha512
ef21244d94a4a70e2b98cd0c472c152530d2f07d1ef0528212032fc8f080d5346f951a023f4c4366d6dae517888fbcb77d099542f841d8b67b40aa0405fd18ab
ripemd-160
07f89ab17db9257ba9e144792a8c85f5ff8de79a
Diameter
162738638
Circumference
511258509.59601
Area
2.0800378379391E+16
Volume
2.2566834982312E+24
Surface area
8.3201513517564E+16
Circumference
511258509.59601
Perimeter
325477276
Area
6620966074523761
Diagonal
115073594.49086
Surface area
39725796447142566
Volume
5.387435006061E+23
Space diagonal
140935794.68528
Perimeter
244107957
Area
2.8669624090663E+15
Altitude
70467897.34264
Surface area
2.8669624090663E+15
Volume
6.3491530433126E+22
Height
38357864.830288