81973669 is an odd 8-digits composite number following 81973668
and preceding 81973670 . In scientific notation, it is written as 8.1973669 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 80270736 positive integers (up to 81973669) that are relatively prime to 81973669.
81973669 has 8 divisors, whose sum is 83682720
The reverse of 81973669 is 96637918
Previous prime number is 659
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighty-one million nine hundred seventy-three thousand six hundred sixty-nine
Scientific notation
8.1973669 × 10^7
Engineering notation
8.1973669 × 10^6
Prime Factorization
53 × 659 × 2347
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81973669
Product of the distinct prime numbers
The prime factorization of 81973669 is 53 × 659 × 2347.
Since it has a total of 3 prime factors.
7 , 3 , 43 , 20 , 126 , 35 , 7762 , 5121 , 66680 , 67549 , 474718 , 954003 , 5900246 , 5513421 , 89520309 , 35210485 , 256599545 , 840813212 , 5482850459 , 8891669286
n×2
163947338
n×3
245921007
n×4
327894676
n×5
409868345
n÷2
40986834.5
n÷3
27324556.333333
n÷3
20493417.25
n÷5
16394733.8
n2
6719682409321561
n3
5.5083702160685E+23
n4
4.5154131682146E+31
n5
3.7014498444946E+39
2 √n
9053.9311351479
3 √n
434.40164175223
4 √n
95.152147296569
5 √n
38.259111030391
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
-81973668
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 81973669 can be divided by 8 positive divisors.
The sum of these divisors (counting 81973669) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000101101000110100101
3
Ternary
12201020200201211
4
Quaternary
10320231012211
5
Quinary
131441124134
6
Senary
12044551421
8
Octal
470550645
10
Decimal
81973669
12
Duodecimal
23552571
16
Hexadecimal
4e2d1a5
20
Vigesimal
15c6e39
36
Base36
1cszad
md5
2091e545a2d63cebc6d309dfeb229bc6
sha1
487be4991c8f25a448a2357d61745305aa773102
sha256
5d905456a32fc3f311a283bd9fce340fcb86601210c766d112a98ea1acc5d40b
sha512
05f9df5ace4ff6b2f4b0ce70e0e8a8343d052f3d6c5cd7dc671e96e056728792ec341d8f2e601ba64cdf294b7676126dd05909b729558253f77e2e348ad49df4
ripemd-160
14eed77b1d38c3b526fa5a6c6ef93d729a9897af
Diameter
163947338
Circumference
515055752.6364
Area
2.1110504891581E+16
Volume
2.3073407205405E+24
Surface area
8.4442019566325E+16
Circumference
515055752.6364
Perimeter
327894676
Area
6719682409321561
Diagonal
115928274.45728
Surface area
40318094455929366
Volume
5.5083702160685E+23
Space diagonal
141982559.59083
Perimeter
245921007
Area
2.9097078359179E+15
Altitude
70991279.795417
Surface area
2.9097078359179E+15
Volume
6.4916765551134E+22
Height
38642758.152428