71289905 is an odd 8-digits composite number following 71289904
and preceding 71289906 . In scientific notation, it is written as 7.1289905 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 56477808 positive integers (up to 71289905) that are relatively prime to 71289905.
71289905 has 8 divisors, whose sum is 86379072
The reverse of 71289905 is 50998217
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
seventy-one million two hundred eighty-nine thousand nine hundred five
Scientific notation
7.1289905 × 10^7
Engineering notation
7.1289905 × 10^6
Prime Factorization
5 × 103 × 138427
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71289905
Product of the distinct prime numbers
The prime factorization of 71289905 is 5 × 103 × 138427.
Since it has a total of 3 prime factors.
9 , 4 , 32 , 23 , 728 , 20 , 1733 , 3870 , 55932 , 24361 , 536152 , 352026 , 9413989 , 4774354 , 67109839 , 7034808 , 894778621 , 208655808 , 8580993775 , 4731107946
n×2
142579810
n×3
213869715
n×4
285159620
n×5
356449525
n÷2
35644952.5
n÷3
23763301.666667
n÷3
17822476.25
n÷5
14257981
n2
5082250554909025
n3
3.6231315924566E+23
n4
2.5829270702873E+31
n5
1.8413662546271E+39
2 √n
8443.3349453874
3 √n
414.644598226
4 √n
91.887621284847
5 √n
37.205368229095
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
-71289904
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 71289905 can be divided by 8 positive divisors.
The sum of these divisors (counting 71289905) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001111111100110000110001
3
Ternary
11222010220100212
4
Quaternary
10033330300301
5
Quinary
121222234110
6
Senary
11023553505
8
Octal
417746061
10
Decimal
71289905
12
Duodecimal
1ba5b895
16
Hexadecimal
43fcc31
20
Vigesimal
125b4f5
36
Base36
16fzn5
md5
56bd710d9a471b2cc135112904deba96
sha1
cd9d36e154413735c4217cce4f8fd563093b973a
sha256
e033bc055270d5356188b1788b14ce4fd7fddcea76d3e8240aad59e371e0a82c
sha512
dcb5a71f36a250b5d583b619adeb2283b06a5799adf40d846eb0095714f4712fb510e68e434916e8670aa6e7516f08247df34f60c69b91f1048e408fb0e18a63
ripemd-160
0922107fcfe0929e0db3a9b9bb2651d6cca9c7da
Diameter
142579810
Circumference
447927683.64623
Area
1.5966361007005E+16
Volume
1.5176538125134E+24
Surface area
6.3865444028019E+16
Circumference
447927683.64623
Perimeter
285159620
Area
5082250554909025
Diagonal
100819150.51129
Surface area
30493503329454150
Volume
3.6231315924566E+23
Space diagonal
123477737.52676
Perimeter
213869715
Area
2.2006790444744E+15
Altitude
61738868.763379
Surface area
2.2006790444744E+15
Volume
4.2699015302621E+22
Height
33606383.503763