681661639 is an odd 9-digits prime number following 681661638
and preceding 681661640 . In scientific notation, it is written as 6.81661639 × 10^8.
The sum of its digits is 46. It has a total of 1 prime factors and 2 positive divisors.
There are 681661638 positive integers (up to 681661639) that are relatively prime to 681661639.
681661639 has 2 divisors, whose sum is 681661640
The reverse of 681661639 is 936166186
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 46
Digital Root 1
Name
six hundred eighty-one million six hundred sixty-one thousand six hundred thirty-nine
Scientific notation
6.81661639 × 10^8
Engineering notation
6.81661639 × 10^6
Prime Factorization
681661639
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
681661639
Product of the distinct prime numbers
The prime factorization of 681661639 is 681661639.
Since it has a total of 1 prime factors.
1 , 10 , 23 , 95 , 6 , 634 , 7483 , 9369 , 68530 , 97384 , 878039 , 544839 , 7013557 , 2747091 , 256012 , 42820633 , 651336325 , 346270723 , 6972856991 , 824852098
n×2
1363323278
n×3
2044984917
n×4
2726646556
n×5
3408308195
n÷2
340830819.5
n÷3
227220546.33333
n÷3
170415409.75
n÷5
136332327.8
n2
464662590084166321
n3
3.1674266273876E+26
n4
2.1591132262373E+35
n5
1.4717846605835E+44
2 √n
26108.650654524
3 √n
880.0816207868
4 √n
161.58171509959
5 √n
58.440479534698
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
681661640
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
340830820
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
26108.650673675
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999997066
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 681661639 can be divided by 2 positive divisors.
The sum of these divisors (counting 681661639) is 681661640, the average is 340830820.
Base
System
Value
2
Binary
101000101000010101010011000111
3
Ternary
1202111122222222101
4
Quaternary
220220111103013
5
Quinary
2344001133024
6
Senary
151350212531
8
Octal
5050252307
10
Decimal
681661639
12
Duodecimal
170354147
16
Hexadecimal
28a154c7
20
Vigesimal
ad07e1j
36
Base36
b9udhj
md5
1bc3c53f2a822c7f912091d0a2d0eed3
sha1
1ccb2ebef4deba2a067d0036ec3d791e9016c615
sha256
f63f0e4e18169854e845652e17d05c03058bcf00a8d0775ac11a59a35f0c945d
sha512
c11c718466bf957846c66428b08ed20f36d647770bc5a2baaa02ff9d2bdea3f06daa4cab9729e982403e84f808acb60cd2e3ec1dbf6ec24220c83a88c48b1d2a
ripemd-160
a45c4d64079d9f1b81836fbe6943c4807c4b54af
Diameter
1363323278
Circumference
4283006394.6328
Area
1.4597805794064E+18
Volume
1.3267685631181E+27
Surface area
5.8391223176257E+18
Circumference
4283006394.6328
Perimeter
2726646556
Area
464662590084166321
Diagonal
964015134.82327
Surface area
2787975540504997926
Volume
3.1674266273876E+26
Space diagonal
1180672592.3187
Perimeter
2044984917
Area
2.0120480360058E+17
Altitude
590336296.15934
Surface area
2.0120480360058E+17
Volume
3.732848078561E+25
Height
321338378.27442