71839920 is an even 8-digits composite number following 71839919
and preceding 71839921 . In scientific notation, it is written as 7.1839920 × 10^7.
The sum of its digits is 39. It has a total of 6 prime factors and 20 positive divisors.
There are 19157248 positive integers (up to 71839920) that are relatively prime to 71839920.
71839920 has 20 divisors, whose sum is 148469664
The reverse of 71839920 is 02993817
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-one million eight hundred thirty-nine thousand nine hundred twenty
Scientific notation
7.1839920 × 10^7
Engineering notation
7.1839920 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 15 × 299333
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8979990
Product of the distinct prime numbers
The prime factorization of 71839920 is 2 × 2 × 2 × 2 × 15 × 299333.
Since it has a total of 6 prime factors.
7 , 6 , 46 , 71 , 984 , 20 , 4571 , 3811 , 14272 , 13108 , 40350 , 654519 , 9611321 , 1869152 , 20112867 , 5689905 , 930437887 , 629400609 , 4095264913 , 84304085
n×2
143679840
n×3
215519760
n×4
287359680
n×5
359199600
n÷2
35919960
n÷3
23946640
n÷3
17959980
n÷5
14367984
n2
5160974105606400
n3
3.7076396686884E+23
n4
2.663565371874E+31
n5
1.913503232302E+39
2 √n
8475.8433208737
3 √n
415.70822118566
4 √n
92.064343373935
5 √n
37.262601155535
1 , 2 , 4 , 8 , 15 , 16 , 30 , 60 , 120 , 240 , 299333 , 598666 , 1197332 , 2394664 , 4489995 , 4789328 , 8979990 , 17959980 , 35919960 , 71839920
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71839919
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71839920 can be divided by 20 positive divisors.
The sum of these divisors (counting 71839920) is 1, the average is 0.05.
Base
System
Value
2
Binary
100010010000011000010110000
3
Ternary
12000011211211210
4
Quaternary
10102003002300
5
Quinary
121342334140
6
Senary
11043440120
8
Octal
422030260
10
Decimal
71839920
12
Duodecimal
20086040
16
Hexadecimal
44830b0
20
Vigesimal
128jjg0
36
Base36
16rs1c
md5
f6a2a594a0a73a2abf1137e42376ebf6
sha1
aa9c99849e678ab0a3df0cfed69d2f9ef307bee0
sha256
9dfad14d2c6a8d3e50d1b663d14fdedd790b392e836b878c3cf5893b30a267ec
sha512
ade8267856a6819643e9d0a4dbb0688f51850eeb5c4283f22a707e1306f191a67cbeeedd1893307d715bd1487fe73b3e0135ae79ce8cf9929fbd2f48244250da
ripemd-160
bce664190acb4c9b51da5f1e38c7c1128b6e6276
Diameter
143679840
Circumference
451383529.81296
Area
1.621367833554E+16
Volume
1.5530524727079E+24
Surface area
6.4854713342161E+16
Circumference
451383529.81296
Perimeter
287359680
Area
5160974105606400
Diagonal
101596989.1838
Surface area
30965844633638400
Volume
3.7076396686884E+23
Space diagonal
124430391.45168
Perimeter
215519760
Area
2.2347673418644E+15
Altitude
62215195.725842
Surface area
2.2347673418644E+15
Volume
4.3694952532096E+22
Height
33865663.061266