71291390 is an even 8-digits composite number following 71291389
and preceding 71291391 . In scientific notation, it is written as 7.1291390 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 28494720 positive integers (up to 71291390) that are relatively prime to 71291390.
71291390 has 16 divisors, whose sum is 128422800
The reverse of 71291390 is 09319217
Previous prime number is 2161
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-one million two hundred ninety-one thousand three hundred ninety
Scientific notation
7.1291390 × 10^7
Engineering notation
7.1291390 × 10^6
Prime Factorization
2 × 5 × 2161 × 3299
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71291390
Product of the distinct prime numbers
The prime factorization of 71291390 is 2 × 5 × 2161 × 3299.
Since it has a total of 4 prime factors.
4 , 8 , 99 , 4 , 352 , 136 , 5178 , 9626 , 27779 , 91840 , 632457 , 322923 , 1719861 , 4852719 , 25277746 , 79569683 , 236287336 , 410703137 , 6978093531 , 5805498238
n×2
142582780
n×3
213874170
n×4
285165560
n×5
356456950
n÷2
35645695
n÷3
23763796.666667
n÷3
17822847.5
n÷5
14258278
n2
5082462288132100
n3
3.6233580114352E+23
n4
2.5831422910285E+31
n5
1.8415580449521E+39
2 √n
8443.4228841152
3 √n
414.64747728231
4 √n
91.888099795976
5 √n
37.205523228632
1 , 2 , 5 , 10 , 2161 , 3299 , 4322 , 6598 , 10805 , 16495 , 21610 , 32990 , 7129139 , 14258278 , 35645695 , 71291390
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71291389
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71291390 can be divided by 16 positive divisors.
The sum of these divisors (counting 71291390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100001111111101000111111110
3
Ternary
11222010222101212
4
Quaternary
10033331013332
5
Quinary
121222311030
6
Senary
11024004422
8
Octal
417750776
10
Decimal
71291390
12
Duodecimal
1ba60712
16
Hexadecimal
43fd1fe
20
Vigesimal
125b89a
36
Base36
16g0se
md5
390a1994421f8601379613598a5659f5
sha1
be6ea5c6541d786c6f698d8fbc529b306de96253
sha256
45a1a4a87f0c0ef6a36195685d5bb19516cc470beac1a3751787e888601e602d
sha512
e9ad884ccd8be659ddd8ccf7af50f2a083da0ac17208e787ff300deff6db79a745a536db9930b98732b16659fb6d024c5fa31b85d714ce5eac8acff9455a63f6
ripemd-160
47b09d71c9af55a6a4daccba755a932d96c5a9ac
Diameter
142582780
Circumference
447937014.17641
Area
1.5967026186543E+16
Volume
1.5177486546734E+24
Surface area
6.3868104746172E+16
Circumference
447937014.17641
Perimeter
285165560
Area
5082462288132100
Diagonal
100821250.61843
Surface area
30494773728792600
Volume
3.6233580114352E+23
Space diagonal
123480309.62221
Perimeter
213874170
Area
2.2007707276494E+15
Altitude
61740154.811104
Surface area
2.2007707276494E+15
Volume
4.2701683675874E+22
Height
33607083.539477