71281289 is an odd 8-digits composite number following 71281288
and preceding 71281290 . In scientific notation, it is written as 7.1281289 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 66991360 positive integers (up to 71281289) that are relatively prime to 71281289.
71281289 has 8 divisors, whose sum is 75583368
The reverse of 71281289 is 98218217
Previous prime number is 797
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-one million two hundred eighty-one thousand two hundred eighty-nine
Scientific notation
7.1281289 × 10^7
Engineering notation
7.1281289 × 10^6
Prime Factorization
17 × 797 × 5261
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71281289
Product of the distinct prime numbers
The prime factorization of 71281289 is 17 × 797 × 5261.
Since it has a total of 3 prime factors.
4 , 2 , 88 , 77 , 9 , 39 , 2656 , 3850 , 40201 , 94907 , 922211 , 536004 , 6673928 , 8253281 , 70877194 , 7112345 , 672599593 , 126365264 , 7554523477 , 4697767231
n×2
142562578
n×3
213843867
n×4
285125156
n×5
356406445
n÷2
35640644.5
n÷3
23760429.666667
n÷3
17820322.25
n÷5
14256257.8
n2
5081022161501521
n3
3.6218180910939E+23
n4
2.581678620567E+31
n5
1.8402537985775E+39
2 √n
8442.824705038
3 √n
414.62789309412
4 √n
91.884844806083
5 √n
37.204468867675
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71281288
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71281289 can be divided by 8 positive divisors.
The sum of these divisors (counting 71281289) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001111111010101010001001
3
Ternary
11222010110112202
4
Quaternary
10033322222021
5
Quinary
121222000124
6
Senary
11023445545
8
Octal
417725211
10
Decimal
71281289
12
Duodecimal
1ba568b5
16
Hexadecimal
43faa89
20
Vigesimal
125a349
36
Base36
16fszt
md5
161891d93b2ac4830ae89e1942113b66
sha1
27a4a82af9df1c1291de28ff2bd25dad888156b0
sha256
4490934a66ae474dae3623d7e676d3478ac563838e8637a59685b32f671e7f3f
sha512
942470f63cdb9a259682bf6d3852c22ffa5f87e62eddbcb7be9d744170eb3a9bcf7f8bc9cfe2dddeab1a82bbcee936d208bd42e2148aa160e190c3363c3495ac
ripemd-160
0c7f8342470a8e33b635d89324f7fcfe4f6740b1
Diameter
142562578
Circumference
447873547.72162
Area
1.59625018953E+16
Volume
1.5171036143492E+24
Surface area
6.38500075812E+16
Circumference
447873547.72162
Perimeter
285125156
Area
5081022161501521
Diagonal
100806965.64724
Surface area
30486132969009126
Volume
3.6218180910939E+23
Space diagonal
123462814.177
Perimeter
213843867
Area
2.200147134526E+15
Altitude
61731407.0885
Surface area
2.200147134526E+15
Volume
4.2683535540611E+22
Height
33602321.882412