81092271 is an odd 8-digits composite number following 81092270
and preceding 81092272 . In scientific notation, it is written as 8.1092271 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 48553344 positive integers (up to 81092271) that are relatively prime to 81092271.
81092271 has 16 divisors, whose sum is 119589344
The reverse of 81092271 is 17229018
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million ninety-two thousand two hundred seventy-one
Scientific notation
8.1092271 × 10^7
Engineering notation
8.1092271 × 10^6
Prime Factorization
3 × 13 × 37 × 56197
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81092271
Product of the distinct prime numbers
The prime factorization of 81092271 is 3 × 13 × 37 × 56197.
Since it has a total of 4 prime factors.
4 , 9 , 13 , 32 , 494 , 19 , 789 , 7571 , 16303 , 99549 , 649441 , 461669 , 7937671 , 8753723 , 69523790 , 83118609 , 254755791 , 549006172 , 1286685472 , 6090022379
n×2
162184542
n×3
243276813
n×4
324369084
n×5
405461355
n÷2
40546135.5
n÷3
27030757
n÷3
20273067.75
n÷5
16218454.2
n2
6575956415937441
n3
5.3325923976539E+23
n4
4.3243202784309E+31
n5
3.5066895190931E+39
2 √n
9005.1247076318
3 √n
432.83910233948
4 √n
94.895335542016
5 √n
38.176480889841
1 , 3 , 13 , 37 , 39 , 111 , 481 , 1443 , 56197 , 168591 , 730561 , 2079289 , 2191683 , 6237867 , 27030757 , 81092271
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
-81092270
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 81092271 can be divided by 16 positive divisors.
The sum of these divisors (counting 81092271) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101010101111010101111
3
Ternary
12122120220200110
4
Quaternary
10311111322233
5
Quinary
131224423041
6
Senary
12014031103
8
Octal
465257257
10
Decimal
81092271
12
Duodecimal
231a8493
16
Hexadecimal
4d55eaf
20
Vigesimal
156gadb
36
Base36
1ca373
md5
dc852931f58df655193017cc3395cdc2
sha1
486d97e4265807325e63e155530bccdd7e585565
sha256
fceae15c855cc4a2586e176b497993058d69f82965d6e90abdd1696e12b59023
sha512
4accdc62a9b6c7856f81c60e09155897da0afd96316e278876b6bc10996953e4e0c7c986e5730835626e56146bcf53f0c9303e84b7b9ea86ded928b87c1974d2
ripemd-160
bfa22c3f52673f1c03c94600f71c70ab8ffa39c7
Diameter
162184542
Circumference
509517765.67303
Area
2.0658976366636E+16
Volume
2.2337110801411E+24
Surface area
8.2635905466543E+16
Circumference
509517765.67303
Perimeter
324369084
Area
6575956415937441
Diagonal
114681789.45183
Surface area
39455738495624646
Volume
5.3325923976539E+23
Space diagonal
140455933.47314
Perimeter
243276813
Area
2.8474726551905E+15
Altitude
70227966.736572
Surface area
2.8474726551905E+15
Volume
6.2845204094748E+22
Height
38227263.150611