71291721 is an odd 8-digits composite number following 71291720
and preceding 71291722 . In scientific notation, it is written as 7.1291721 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 46422432 positive integers (up to 71291721) that are relatively prime to 71291721.
71291721 has 8 divisors, whose sum is 97266400
The reverse of 71291721 is 12719217
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
seventy-one million two hundred ninety-one thousand seven hundred twenty-one
Scientific notation
7.1291721 × 10^7
Engineering notation
7.1291721 × 10^6
Prime Factorization
3 × 43 × 552649
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71291721
Product of the distinct prime numbers
The prime factorization of 71291721 is 3 × 43 × 552649.
Since it has a total of 3 prime factors.
10 , 4 , 24 , 55 , 7 , 625 , 7856 , 9359 , 12724 , 37613 , 444910 , 325117 , 6685821 , 877077 , 61132786 , 14120967 , 422352085 , 375960849 , 7489562809 , 8412565973
n×2
142583442
n×3
213875163
n×4
285166884
n×5
356458605
n÷2
35645860.5
n÷3
23763907
n÷3
17822930.25
n÷5
14258344.2
n2
5082509483141841
n3
3.62340848052E+23
n4
2.5831902646227E+31
n5
1.841600796354E+39
2 √n
8443.4424851479
3 √n
414.64811900591
4 √n
91.888206452993
5 √n
37.205557776998
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
-71291720
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 71291721 can be divided by 8 positive divisors.
The sum of these divisors (counting 71291721) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001111111101001101001001
3
Ternary
11222010222212010
4
Quaternary
10033331031021
5
Quinary
121222313341
6
Senary
11024010133
8
Octal
417751511
10
Decimal
71291721
12
Duodecimal
1ba60949
16
Hexadecimal
43fd349
20
Vigesimal
125b961
36
Base36
16g11l
md5
031e59d65598982960c57eba3e706af1
sha1
c27bf3371747968634dd68b09521b6d021f4a793
sha256
80a0f8e8d7c14c4715332641d05a3106368ecdb9ebfe4b1c9799cfd3b3c15193
sha512
7869bd3719e7ed264b5d6e439ab50545dd76642974ac90b9a9d3bf6d64f1390766b771a57648dbe79b37ff1d2ed1697dbbfe7d19883bb0ee26c58092c6a8f057
ripemd-160
82b98d398e1d1a891e23ce0c56f7d674c0f3fde2
Diameter
142583442
Circumference
447939093.91075
Area
1.5967174454039E+16
Volume
1.5177697951142E+24
Surface area
6.3868697816155E+16
Circumference
447939093.91075
Perimeter
285166884
Area
5082509483141841
Diagonal
100821718.72312
Surface area
30495056898851046
Volume
3.62340848052E+23
Space diagonal
123480882.93103
Perimeter
213875163
Area
2.2007911636881E+15
Altitude
61740441.465513
Surface area
2.2007911636881E+15
Volume
4.2702278459743E+22
Height
33607239.574373