71809904 is an even 8-digits composite number following 71809903
and preceding 71809905 . In scientific notation, it is written as 7.1809904 × 10^7.
The sum of its digits is 38. It has a total of 6 prime factors and 20 positive divisors.
There are 33792768 positive integers (up to 71809904) that are relatively prime to 71809904.
71809904 has 20 divisors, whose sum is 147316464
The reverse of 71809904 is 40990817
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-one million eight hundred nine thousand nine hundred four
Scientific notation
7.1809904 × 10^7
Engineering notation
7.1809904 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 17 × 264007
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8976238
Product of the distinct prime numbers
The prime factorization of 71809904 is 2 × 2 × 2 × 2 × 17 × 264007.
Since it has a total of 6 prime factors.
4 , 7 , 78 , 34 , 673 , 101 , 2606 , 7875 , 8372 , 18603 , 185517 , 463445 , 1575887 , 6716208 , 3128623 , 93375024 , 112930108 , 819790222 , 990884996 , 9796530134
n×2
143619808
n×3
215429712
n×4
287239616
n×5
359049520
n÷2
35904952
n÷3
23936634.666667
n÷3
17952476
n÷5
14361980.8
n2
5156662312489216
n3
3.7029942562027E+23
n4
2.6591166205047E+31
n5
1.9095090924324E+39
2 √n
8474.0724566173
3 √n
415.65031635039
4 √n
92.054725335625
5 √n
37.25948683912
1 , 2 , 4 , 8 , 16 , 17 , 34 , 68 , 136 , 272 , 264007 , 528014 , 1056028 , 2112056 , 4224112 , 4488119 , 8976238 , 17952476 , 35904952 , 71809904
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
-71809903
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 71809904 can be divided by 20 positive divisors.
The sum of these divisors (counting 71809904) is 1, the average is 0.05.
Base
System
Value
2
Binary
100010001111011101101110000
3
Ternary
12000010022200002
4
Quaternary
10101323231300
5
Quinary
121340404104
6
Senary
11043045132
8
Octal
421735560
10
Decimal
71809904
12
Duodecimal
200707a8
16
Hexadecimal
447bb70
20
Vigesimal
128g4f4
36
Base36
16r4vk
md5
a54bb05f512bfed8f101268957507e6e
sha1
d2f12be6193842a1a27ab7cd7afc85bf5c5d1d0b
sha256
0de9f2f20219f65e1f08a40d2d18f1b9c42ee8435b23137a1bf2fda94401be73
sha512
e588f859b5a72a75bc53f5fe2ab4097c3d6f55c2fa19332da9fe7cb21388be4e5a324a7c21c2f85ca5d5ae021327680f3213ffacb291d7e3a36c43ab5188d469
ripemd-160
44c24fdb06d7ac0a3857d15316733ec0ba61780b
Diameter
143619808
Circumference
451194933.72278
Area
1.6200132437959E+16
Volume
1.5511066068762E+24
Surface area
6.4800529751838E+16
Circumference
451194933.72278
Perimeter
287239616
Area
5156662312489216
Diagonal
101554540.14951
Surface area
30939973874935296
Volume
3.7029942562027E+23
Space diagonal
124378402.21464
Perimeter
215429712
Area
2.2329002806767E+15
Altitude
62189201.107322
Surface area
2.2329002806767E+15
Volume
4.3640205820929E+22
Height
33851513.38317