71297921 is an odd 8-digits composite number following 71297920
and preceding 71297922 . In scientific notation, it is written as 7.1297921 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 68839344 positive integers (up to 71297921) that are relatively prime to 71297921.
71297921 has 4 divisors, whose sum is 73756500
The reverse of 71297921 is 12979217
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-one million two hundred ninety-seven thousand nine hundred twenty-one
Scientific notation
7.1297921 × 10^7
Engineering notation
7.1297921 × 10^6
Prime Factorization
29 × 2458549
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71297921
Product of the distinct prime numbers
The prime factorization of 71297921 is 29 × 2458549.
Since it has a total of 2 prime factors.
5 , 5 , 40 , 31 , 596 , 976 , 2347 , 8351 , 43868 , 16894 , 763140 , 835910 , 1512209 , 5605924 , 50902638 , 39226223 , 291586970 , 263311107 , 9933573012 , 768322470
n×2
142595842
n×3
213893763
n×4
285191684
n×5
356489605
n÷2
35648960.5
n÷3
23765973.666667
n÷3
17824480.25
n÷5
14259584.2
n2
5083393538922241
n3
3.6243539094999E+23
n4
2.5840889871556E+31
n5
1.8424017246319E+39
2 √n
8443.8096259923
3 √n
414.66013883926
4 √n
91.890204189523
5 √n
37.206204882808
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
-71297920
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 71297921 can be divided by 4 positive divisors.
The sum of these divisors (counting 71297921) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111111110101110000001
3
Ternary
11222011022100202
4
Quaternary
10033332232001
5
Quinary
121223013141
6
Senary
11024054545
8
Octal
417765601
10
Decimal
71297921
12
Duodecimal
1ba64455
16
Hexadecimal
43feb81
20
Vigesimal
125c4g1
36
Base36
16g5tt
md5
f01899db3596f79cb1983db38342251d
sha1
7779a5699ae08b324a29f84aa992ad34b86d6a90
sha256
0c01ad1ef98b05db11a3474789e18a1605c8704e36d291063ec0e727e12c076a
sha512
f7084bda478fd1ffe6b4edc02ee13c8c66011ca2a406c4229014382bbbb00d789fd2f048dbbc70d79c7034128bf9e32f1d571eb981f79899fde32501bb36e1b0
ripemd-160
6ac498eb2d923192c732b95577ca1e254e567733
Diameter
142595842
Circumference
447978049.65965
Area
1.5969951797184E+16
Volume
1.5181658154792E+24
Surface area
6.3879807188736E+16
Circumference
447978049.65965
Perimeter
285191684
Area
5083393538922241
Diagonal
100830486.84721
Surface area
30500361233533446
Volume
3.6243539094999E+23
Space diagonal
123491621.64603
Perimeter
213893763
Area
2.2011739710702E+15
Altitude
61745810.823016
Surface area
2.2011739710702E+15
Volume
4.2713420447122E+22
Height
33610162.282402