71288891 is an odd 8-digits composite number following 71288890
and preceding 71288892 . In scientific notation, it is written as 7.1288891 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 68189352 positive integers (up to 71288891) that are relatively prime to 71288891.
71288891 has 4 divisors, whose sum is 74388432
The reverse of 71288891 is 19888217
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
seventy-one million two hundred eighty-eight thousand eight hundred ninety-one
Scientific notation
7.1288891 × 10^7
Engineering notation
7.1288891 × 10^6
Prime Factorization
23 × 3099517
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71288891
Product of the distinct prime numbers
The prime factorization of 71288891 is 23 × 3099517.
Since it has a total of 2 prime factors.
9 , 9 , 54 , 54 , 404 , 516 , 233 , 9232 , 9106 , 41612 , 503148 , 296446 , 3673217 , 5185201 , 92414470 , 65147335 , 564232180 , 345237059 , 4376795950 , 1638224740
n×2
142577782
n×3
213866673
n×4
285155564
n×5
356444455
n÷2
35644445.5
n÷3
23762963.666667
n÷3
17822222.75
n÷5
14257778.2
n2
5082105980009881
n3
3.6229769925937E+23
n4
2.5827801192052E+31
n5
1.8412353039499E+39
2 √n
8443.2748978107
3 √n
414.64263230195
4 √n
91.887294539619
5 √n
37.205262389543
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
-71288890
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 71288891 can be divided by 4 positive divisors.
The sum of these divisors (counting 71288891) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111111100100000111011
3
Ternary
11222010211222022
4
Quaternary
10033330200323
5
Quinary
121222221031
6
Senary
11023545055
8
Octal
417744073
10
Decimal
71288891
12
Duodecimal
1ba5b18b
16
Hexadecimal
43fc83b
20
Vigesimal
125b24b
36
Base36
16fyuz
md5
e9f67a8a8b1df643168aa943910e6caa
sha1
987e9cc11946947f6b3fef77a839e8182a84177b
sha256
07f5b933983a832d36f0bc0ccf14978f9043a2822cb3a29f9f854ffcbf514dd8
sha512
834afdbc8bdb9bee55b0468d9933abfebb8e6ad5c1bcb1624fe70571f6e9338c9c5646c5ec58bd8324fcc917ca19ffee55b8d746bbdb78caa4f7293e0de5a517
ripemd-160
a764d5c95a38d64cdd7d9c05654b265b0caba49e
Diameter
142577782
Circumference
447921312.49633
Area
1.5965906811564E+16
Volume
1.5175890538743E+24
Surface area
6.3863627246255E+16
Circumference
447921312.49633
Perimeter
285155564
Area
5082105980009881
Diagonal
100817716.49874
Surface area
30492635880059286
Volume
3.6229769925937E+23
Space diagonal
123475981.22724
Perimeter
213866673
Area
2.2006164417067E+15
Altitude
61737990.61362
Surface area
2.2006164417067E+15
Volume
4.2697193325764E+22
Height
33605905.499579