6687385721 is an odd 10-digits composite number following 6687385720
and preceding 6687385722 . In scientific notation, it is written as 6.687385721 × 10^9.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 6660742500 positive integers (up to 6687385721) that are relatively prime to 6687385721.
6687385721 has 4 divisors, whose sum is 6714028944
The reverse of 6687385721 is 1275837866
Previous prime number is 251
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 53
Digital Root 8
Name
six billion six hundred eighty-seven million three hundred eighty-five thousand seven hundred twenty-one
Scientific notation
6.687385721 × 10^9
Engineering notation
6.687385721 × 10^9
Prime Factorization
251 × 26642971
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
6687385721
Product of the distinct prime numbers
The prime factorization of 6687385721 is 251 × 26642971.
Since it has a total of 2 prime factors.
1 , 5 , 26 , 35 , 5 , 34 , 9242 , 6894 , 3802 , 3730 , 72255 , 819335 , 833681 , 3737920 , 93478404 , 64085610 , 180114083 , 46419168 , 8814621767 , 4748280951
n×2
13374771442
n×3
20062157163
n×4
26749542884
n×5
33436928605
n÷2
3343692860.5
n÷3
2229128573.6667
n÷3
1671846430.25
n÷5
1337477144.2
n2
4.4721127781435E+19
n3
2.9906743135258E+29
n4
1.9999792700434E+39
n5
1.3374632812784E+49
2 √n
81776.437443802
3 √n
1884.0197790674
4 √n
285.96579768182
5 √n
92.268035640989
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
-6687385720
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 6687385721 can be divided by 4 positive divisors.
The sum of these divisors (counting 6687385721) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001110100110010110100001111001
3
Ternary
122021001111101121122
4
Quaternary
12032212112201321
5
Quinary
102143432320341
6
Senary
3023325515025
8
Octal
61646264171
10
Decimal
6687385721
12
Duodecimal
1367712a75
16
Hexadecimal
18e996879
20
Vigesimal
549g3461
36
Base36
32lhvuh
md5
2160cd08ed0efb24c43c3585132ff6a7
sha1
caa135739a4e27487b13bb8d3412c3d5894e821b
sha256
39f99f26814f2c6beb0232e01f6385e4a62f0913a93f041fe91e18c0f660ccef
sha512
a3983f017583fc14577c5d58bac1e4183b64abb8b9dc718bb6a944e0020177d5b2ee25b6bb9c142b9265082cd138c6b9899eff646f8df39c56bb8cc0187641c5
ripemd-160
8cb43c59710688ce4ac74099aba17c814d195e8b
Diameter
13374771442
Circumference
42018083705.63
Area
1.4049556649841E+20
Volume
1.2527307270203E+30
Surface area
5.6198226599362E+20
Circumference
42018083705.63
Perimeter
26749542884
Area
4.4721127781435E+19
Diagonal
9457391583.4584
Surface area
2.6832676668861E+20
Volume
2.9906743135258E+29
Space diagonal
11582891838.583
Perimeter
20062157163
Area
1.9364816372306E+19
Altitude
5791445919.2913
Surface area
1.9364816372306E+19
Volume
3.5245434790242E+28
Height
3152463861.1528