681397188 is an even 9-digits composite number following 681397187
and preceding 681397189 . In scientific notation, it is written as 6.81397188 × 10^8.
The sum of its digits is 51. It has a total of 4 prime factors and 12 positive divisors.
There are 227132392 positive integers (up to 681397188) that are relatively prime to 681397188.
681397188 has 12 divisors, whose sum is 1589926800
The reverse of 681397188 is 881793186
Previous prime number is 3
Is Prime? no
Number parity even
Number length 9
Sum of Digits 51
Digital Root 6
Name
six hundred eighty-one million three hundred ninety-seven thousand one hundred eighty-eight
Scientific notation
6.81397188 × 10^8
Engineering notation
6.81397188 × 10^6
Prime Factorization
2 × 2 × 3 × 56783099
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
340698594
Product of the distinct prime numbers
The prime factorization of 681397188 is 2 × 2 × 3 × 56783099.
Since it has a total of 4 prime factors.
4 , 6 , 7 , 2 , 257 , 545 , 7907 , 742 , 47006 , 71024 , 434710 , 268787 , 9324993 , 2558507 , 90664859 , 5501780 , 627191064 , 423120279 , 2726468172 , 1367852157
n×2
1362794376
n×3
2044191564
n×4
2725588752
n×5
3406985940
n÷2
340698594
n÷3
227132396
n÷3
170349297
n÷5
136279437.6
n2
464302127814307344
n3
3.1637416427509E+26
n4
2.1557646589289E+35
n5
1.468931976584E+44
2 √n
26103.5857307
3 √n
879.96779668656
4 √n
161.56604139082
5 √n
58.435944427782
1 , 2 , 3 , 4 , 6 , 12 , 56783099 , 113566198 , 170349297 , 227132396 , 340698594 , 681397188
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-681397187
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 681397188 can be divided by 12 positive divisors.
The sum of these divisors (counting 681397188) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101000100111010100101111000100
3
Ternary
1202111011120012220
4
Quaternary
220213110233010
5
Quinary
2343414202223
6
Senary
151340412340
8
Octal
5047245704
10
Decimal
681397188
12
Duodecimal
1702470b0
16
Hexadecimal
289d4bc4
20
Vigesimal
aciecj8
36
Base36
b9opfo
md5
353ee77608dde3e72ba902225b95e3b4
sha1
eab4ae712543f6ebbdf859c4a727d19f6e8526d6
sha256
e02226ccdfc0d3dbf71b8ed66390cceb180a511836fb4797331a9dc80c1d2ebc
sha512
d49384f9eb49fcb6468a84198e4b1c4c7ad26a724120070301f1b3c0b39194dedfb967f52b0b15181a1cc3176a6801891954b9e29420a82d418120a1f687a62e
ripemd-160
8bd75df874d57e66f50c305fc1f2c8ad8285055d
Diameter
1362794376
Circumference
4281344799.9951
Area
1.4586481537875E+18
Volume
1.325225000363E+27
Surface area
5.8345926151501E+18
Circumference
4281344799.9951
Perimeter
2725588752
Area
464302127814307344
Diagonal
963641144.63249
Surface area
2785812766885844064
Volume
3.1637416427509E+26
Space diagonal
1180214549.7506
Perimeter
2044191564
Area
2.0104871885918E+17
Altitude
590107274.87528
Surface area
2.0104871885918E+17
Volume
3.728505282519E+25
Height
321213714.8775