71397881 is an odd 8-digits composite number following 71397880
and preceding 71397882 . In scientific notation, it is written as 7.1397881 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 71354112 positive integers (up to 71397881) that are relatively prime to 71397881.
71397881 has 4 divisors, whose sum is 71441652
The reverse of 71397881 is 18879317
Previous prime number is 1697
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
seventy-one million three hundred ninety-seven thousand eight hundred eighty-one
Scientific notation
7.1397881 × 10^7
Engineering notation
7.1397881 × 10^6
Prime Factorization
1697 × 42073
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71397881
Product of the distinct prime numbers
The prime factorization of 71397881 is 1697 × 42073.
Since it has a total of 2 prime factors.
6 , 7 , 1 , 66 , 813 , 299 , 8271 , 6217 , 64209 , 15837 , 277149 , 692243 , 5344192 , 1448187 , 33039473 , 88299048 , 126530643 , 92758573 , 7156196185 , 6905410966
n×2
142795762
n×3
214193643
n×4
285591524
n×5
356989405
n÷2
35698940.5
n÷3
23799293.666667
n÷3
17849470.25
n÷5
14279576.2
n2
5097657411290161
n3
3.6396193723006E+23
n4
2.5986111082882E+31
n5
1.8553532667484E+39
2 √n
8449.7266819703
3 √n
414.85383346228
4 √n
91.922394888135
5 √n
37.216631689775
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
-71397880
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 71397881 can be divided by 4 positive divisors.
The sum of these divisors (counting 71397881) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000010111000111111001
3
Ternary
11222100101110222
4
Quaternary
10100113013321
5
Quinary
121234213011
6
Senary
11030145425
8
Octal
420270771
10
Decimal
71397881
12
Duodecimal
1bab2275
16
Hexadecimal
44171f9
20
Vigesimal
1264ee1
36
Base36
16iayh
md5
c9c3884c1451d1400b752d57d8430983
sha1
a4ac3221bf61d4dab98d6f9ee1f043f5ee755e0c
sha256
996e34e92182809856c2d470beab00c5f7c6852c151d74f9608a2ecca0a279eb
sha512
13dd17ffbb4f294f1e44a54871bc9b41300be46b1dfedc3d00e515d8180a07a990e1939d93407a07cc16dca57ced1abb97cd67a7049bb2c75f5155ac7d1f69fa
ripemd-160
bd9b5dc3fe2f9c1154737945e06b4b491ce49672
Diameter
142795762
Circumference
448606116.86296
Area
1.6014763073827E+16
Volume
1.5245601975844E+24
Surface area
6.4059052295307E+16
Circumference
448606116.86296
Perimeter
285591524
Area
5097657411290161
Diagonal
100971851.6349
Surface area
30585944467740966
Volume
3.6396193723006E+23
Space diagonal
123664757.44476
Perimeter
214193643
Area
2.2073504089836E+15
Altitude
61832378.722378
Surface area
2.2073504089836E+15
Volume
4.2893325651528E+22
Height
33657283.8783