71281009 is an odd 8-digits composite number following 71281008
and preceding 71281010 . In scientific notation, it is written as 7.1281009 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 70907620 positive integers (up to 71281009) that are relatively prime to 71281009.
71281009 has 4 divisors, whose sum is 71654400
The reverse of 71281009 is 90018217
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
seventy-one million two hundred eighty-one thousand nine
Scientific notation
7.1281009 × 10^7
Engineering notation
7.1281009 × 10^6
Prime Factorization
191 × 373199
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71281009
Product of the distinct prime numbers
The prime factorization of 71281009 is 191 × 373199.
Since it has a total of 2 prime factors.
6 , 9 , 60 , 61 , 713 , 151 , 2967 , 2012 , 3380 , 62314 , 752294 , 582860 , 9041877 , 6474854 , 86115773 , 51577583 , 194324831 , 292700213 , 3743315081 , 5310337780
n×2
142562018
n×3
213843027
n×4
285124036
n×5
356405045
n÷2
35640504.5
n÷3
23760336.333333
n÷3
17820252.25
n÷5
14256201.8
n2
5080982244058081
n3
3.6217754106754E+23
n4
2.5816380564433E+31
n5
1.8402176553608E+39
2 √n
8442.8081228937
3 √n
414.62735019353
4 √n
91.884754572746
5 √n
37.204439639058
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
-71281008
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 71281009 can be divided by 4 positive divisors.
The sum of these divisors (counting 71281009) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111111010100101110001
3
Ternary
11222010110011101
4
Quaternary
10033322211301
5
Quinary
121221443014
6
Senary
11023444401
8
Octal
417724561
10
Decimal
71281009
12
Duodecimal
1ba56701
16
Hexadecimal
43fa971
20
Vigesimal
125a2a9
36
Base36
16fss1
md5
ce80e672b0fbde1cb84943ae4a0b5818
sha1
966a772a6bc2e1feea1b65b258763f61b859ec15
sha256
8af03c89f24d87427dec57b6987a39ade6d489fde62be9228505f737fbd325e8
sha512
e997671e0377a3506e1b54cbeb6a87f4107842d24bd8b7ad569d2f297906bde2fe685fdcf8c04cc35da71e4ee0ac5c2a88ed97f1a5eeaf579d6a6877876a998b
ripemd-160
50f002d39fd67a91ee82435f8e4641744359b75b
Diameter
142562018
Circumference
447871788.42974
Area
1.5962376490953E+16
Volume
1.5170857364173E+24
Surface area
6.3849505963812E+16
Circumference
447871788.42974
Perimeter
285124036
Area
5080982244058081
Diagonal
100806569.66744
Surface area
30485893464348486
Volume
3.6217754106754E+23
Space diagonal
123462329.20277
Perimeter
213843027
Area
2.200129849766E+15
Altitude
61731164.601387
Surface area
2.200129849766E+15
Volume
4.2683032547055E+22
Height
33602189.889146