681661569 is an odd 9-digits composite number following 681661568
and preceding 681661570 . In scientific notation, it is written as 6.81661569 × 10^8.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 454441044 positive integers (up to 681661569) that are relatively prime to 681661569.
681661569 has 4 divisors, whose sum is 908882096
The reverse of 681661569 is 965166186
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
six hundred eighty-one million six hundred sixty-one thousand five hundred sixty-nine
Scientific notation
6.81661569 × 10^8
Engineering notation
6.81661569 × 10^6
Prime Factorization
3 × 227220523
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
681661569
Product of the distinct prime numbers
The prime factorization of 681661569 is 3 × 227220523.
Since it has a total of 2 prime factors.
4 , 5 , 53 , 47 , 839 , 510 , 3319 , 7941 , 59536 , 3126 , 522140 , 539566 , 4920507 , 3778123 , 80333481 , 98508533 , 961465 , 62576743 , 9629445696 , 1846675048
n×2
1363323138
n×3
2044984707
n×4
2726646276
n×5
3408307845
n÷2
340830784.5
n÷3
227220523
n÷3
170415392.25
n÷5
136332313.8
n2
464662494651541761
n3
3.1674256515962E+26
n4
2.1591123393579E+35
n5
1.471783904894E+44
2 √n
26108.649313973
3 √n
880.08159066154
4 √n
161.58171095137
5 √n
58.440478334445
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
-681661568
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 681661569 can be divided by 4 positive divisors.
The sum of these divisors (counting 681661569) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000101000010101010010000001
3
Ternary
1202111122222212210
4
Quaternary
220220111102001
5
Quinary
2344001132234
6
Senary
151350212333
8
Octal
5050252201
10
Decimal
681661569
12
Duodecimal
1703540a9
16
Hexadecimal
28a15481
20
Vigesimal
ad07di9
36
Base36
b9udfl
md5
f41c254e5764778df84126ff0a2637ad
sha1
5c16599a12493cd5aa6359b23189becdca4c6878
sha256
14291e455e086954842329119889b30d432fa4b9d0bb30da60d8fad9bc8c68ec
sha512
6b59d321edadb1d0f5013264a717b46391a26676cbab919a89e0709a870f62db2a63a867fd91281d26ee7a1b350dacab503f52471d8ea4e2c3d284fff067dd10
ripemd-160
8b3a1af98afb7cdda1f36073d9c3e96d1edf99fe
Diameter
1363323138
Circumference
4283005954.8098
Area
1.459780279596E+18
Volume
1.3267681543795E+27
Surface area
5.839121118384E+18
Circumference
4283005954.8098
Perimeter
2726646276
Area
464662494651541761
Diagonal
964015035.82832
Surface area
2787974967909250566
Volume
3.1674256515962E+26
Space diagonal
1180672471.0751
Perimeter
2044984707
Area
2.0120476227704E+17
Altitude
590336235.53756
Surface area
2.0120476227704E+17
Volume
3.7328469285799E+25
Height
321338345.27611