71397281 is an odd 8-digits composite number following 71397280
and preceding 71397282 . In scientific notation, it is written as 7.1397281 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 71202372 positive integers (up to 71397281) that are relatively prime to 71397281.
71397281 has 4 divisors, whose sum is 71592192
The reverse of 71397281 is 18279317
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-one million three hundred ninety-seven thousand two hundred eighty-one
Scientific notation
7.1397281 × 10^7
Engineering notation
7.1397281 × 10^6
Prime Factorization
367 × 194543
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71397281
Product of the distinct prime numbers
The prime factorization of 71397281 is 367 × 194543.
Since it has a total of 2 prime factors.
8 , 6 , 22 , 79 , 101 , 964 , 4486 , 4703 , 31666 , 9564 , 576010 , 255639 , 3427549 , 4822908 , 25029709 , 3935863 , 360159478 , 754000419 , 7654463706 , 6273064939
n×2
142794562
n×3
214191843
n×4
285589124
n×5
356986405
n÷2
35698640.5
n÷3
23799093.666667
n÷3
17849320.25
n÷5
14279456.2
n2
5097571734192961
n3
3.6395276152383E+23
n4
2.5985237585243E+31
n5
1.8552753097254E+39
2 √n
8449.6911777887
3 √n
414.85267136898
4 √n
91.92220176752
5 √n
37.216569138747
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
-71397280
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 71397281 can be divided by 4 positive divisors.
The sum of these divisors (counting 71397281) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000010110111110100001
3
Ternary
11222100100122202
4
Quaternary
10100112332201
5
Quinary
121234203111
6
Senary
11030142545
8
Octal
420267641
10
Decimal
71397281
12
Duodecimal
1bab1a55
16
Hexadecimal
4416fa1
20
Vigesimal
1264d41
36
Base36
16iaht
md5
cd0dd611466ca9cae00fadbaa618f1b2
sha1
e48e646ebc137b790ec238055457323292adcdc2
sha256
08fcbea48de49c3d47d866b16f050247bac45388b14d0c7af31f0855105a7704
sha512
7f315c64d701a1c5e0f752414232debb401773f9138211554827043ce620c2b1556463d53609e5c68622d16575e41f339f8d061ba26852b87c0d48adaf2ca181
ripemd-160
77c017448a0c9d221cf20f6dcb7349a79e2ecafb
Diameter
142794562
Circumference
448602346.95177
Area
1.6014493911288E+16
Volume
1.524521762476E+24
Surface area
6.405797564515E+16
Circumference
448602346.95177
Perimeter
285589124
Area
5097571734192961
Diagonal
100971003.10676
Surface area
30585430405157766
Volume
3.6395276152383E+23
Space diagonal
123663718.21427
Perimeter
214191843
Area
2.2073133097123E+15
Altitude
61831859.107136
Surface area
2.2073133097123E+15
Volume
4.2892244284179E+22
Height
33657001.035588