71297781 is an odd 8-digits composite number following 71297780
and preceding 71297782 . In scientific notation, it is written as 7.1297781 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 47531852 positive integers (up to 71297781) that are relatively prime to 71297781.
71297781 has 4 divisors, whose sum is 95063712
The reverse of 71297781 is 18779217
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-one million two hundred ninety-seven thousand seven hundred eighty-one
Scientific notation
7.1297781 × 10^7
Engineering notation
7.1297781 × 10^6
Prime Factorization
3 × 23765927
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71297781
Product of the distinct prime numbers
The prime factorization of 71297781 is 3 × 23765927.
Since it has a total of 2 prime factors.
2 , 6 , 11 , 75 , 452 , 360 , 2086 , 7412 , 78638 , 37668 , 131931 , 618804 , 374383 , 242589 , 5223183 , 5107854 , 717262518 , 305098991 , 8070776941 , 5816265425
n×2
142595562
n×3
213893343
n×4
285191124
n×5
356488905
n÷2
35648890.5
n÷3
23765927
n÷3
17824445.25
n÷5
14259556.2
n2
5083373575523961
n3
3.6243325592889E+23
n4
2.5840686908335E+31
n5
1.8423836360801E+39
2 √n
8443.8013358913
3 √n
414.65986743136
4 √n
91.890159080781
5 √n
37.206190271238
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
-71297780
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 71297781 can be divided by 4 positive divisors.
The sum of these divisors (counting 71297781) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111111110101011110101
3
Ternary
11222011022011120
4
Quaternary
10033332223311
5
Quinary
121223012111
6
Senary
11024054153
8
Octal
417765365
10
Decimal
71297781
12
Duodecimal
1ba64359
16
Hexadecimal
43feaf5
20
Vigesimal
125c491
36
Base36
16g5px
md5
79e77d53a370d9d450059948b23e5e44
sha1
66db163dab108089a2a994652e7696d8a88e7759
sha256
63878dade8a36344f40b05f24100eac39b36aa3f01e2db1963429cbef45ac5ca
sha512
c03f11c81f01db94fd88a4ae7bf3750fa4204e7b966596d4485cbb29a6c6ab6e3f20cb4052ee32a64f7ae1a257578bfab1e6db97a4ae97077ba67c783542b99a
ripemd-160
b929ba7d9c01748f55e638c6aeb4754e3b7455c3
Diameter
142595562
Circumference
447977170.01371
Area
1.5969889080319E+16
Volume
1.5181568723238E+24
Surface area
6.3879556321274E+16
Circumference
447977170.01371
Perimeter
285191124
Area
5083373575523961
Diagonal
100830288.85731
Surface area
30500241453143766
Volume
3.6243325592889E+23
Space diagonal
123491379.15892
Perimeter
213893343
Area
2.2011653266651E+15
Altitude
61745689.579459
Surface area
2.2011653266651E+15
Volume
4.2713168832473E+22
Height
33610096.285769