81271 is an odd 5-digits composite number following 81270
and preceding 81272 . In scientific notation, it is written as 8.1271 × 10^4.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 79992 positive integers (up to 81271) that are relatively prime to 81271.
81271 has 4 divisors, whose sum is 82552
The reverse of 81271 is 17218
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 19
Digital Root 1
Name
eighty-one thousand two hundred seventy-one
Scientific notation
8.1271 × 10^4
Engineering notation
8.1271 × 10^3
Prime Factorization
67 × 1213
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81271
Product of the distinct prime numbers
The prime factorization of 81271 is 67 × 1213.
Since it has a total of 2 prime factors.
6 , 6 , 1 , 55 , 819 , 59 , 4198 , 8024 , 867 , 49667 , 938233 , 174195 , 8020634 , 8658501 , 25122421 , 59118922 , 922321773 , 583724416 , 2786051764 , 2835217707
n×2
162542
n×3
243813
n×4
325084
n×5
406355
n÷2
40635.5
n÷3
27090.333333333
n÷3
20317.75
n÷5
16254.2
n2
6604975441
n3
536792959065511
n4
4.3625700576213E+19
n5
3.5455043115294E+24
2 √n
285.0806903317
3 √n
43.31568643714
4 √n
16.884332688374
5 √n
9.5937218028545
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
-81270
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 81271 can be divided by 4 positive divisors.
The sum of these divisors (counting 81271) is 1, the average is 0.25.
Base
System
Value
2
Binary
10011110101110111
3
Ternary
11010111001
4
Quaternary
103311313
5
Quinary
10100041
6
Senary
1424131
8
Octal
236567
10
Decimal
81271
12
Duodecimal
3b047
16
Hexadecimal
13d77
20
Vigesimal
a33b
36
Base36
1qpj
md5
751ae00881785f5939f04db589adeb22
sha1
694203d18c875a18a614d5e8d82fa60ad6d4a36d
sha256
7a8d0118c13d2ff0096197fcebe18dcdd250965cd54ce0c1b79cd830f4e13e33
sha512
cea45f0d61089e6fa036dc5035054f1036af861158c7ef6abc6a0457dbc54ba30418bd111aeddb99ea859a5ca4d89f47a0ca8b77c7bfc1169601fd641b45a7ca
ripemd-160
2a7de4b6e5fe86d087d4b64fb7a7eb891bfb7780
Diameter
162542
Circumference
510640.75309979
Area
20750142322.587
Volume
2.2485130889319E+15
Surface area
83000569290.346
Circumference
510640.75309979
Perimeter
325084
Area
6604975441
Diagonal
114934.55042762
Surface area
39629852646
Volume
536792959065511
Space diagonal
140765.50118193
Perimeter
243813
Area
2860038261.6392
Altitude
70382.750590965
Surface area
2860038261.6392
Volume
63261656908069
Height
38311.516809208