7988697921 is an odd 10-digits composite number following 7988697920
and preceding 7988697922 . In scientific notation, it is written as 7.988697921 × 10^9.
The sum of its digits is 66. It has a total of 3 prime factors and 8 positive divisors.
There are 5238490320 positive integers (up to 7988697921) that are relatively prime to 7988697921.
7988697921 has 8 divisors, whose sum is 10826213824
The reverse of 7988697921 is 1297968897
Previous prime number is 61
Is Prime? no Number parity odd Number length 10 Sum of Digits 66 Digital Root 3
Name
seven billion nine hundred eighty-eight million six hundred ninety-seven thousand nine hundred twenty-one
Scientific notation
7.988697921 × 10^9
Engineering notation
7.988697921 × 10^9
Prime Factorization
3 × 61 × 43654087
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
7988697921 Product of the distinct prime numbers
The prime factorization of 7988697921 is 3 × 61 × 43654087.
Since it has a total of 3 prime factors.
2 , 6 , 66 , 96 , 265 , 649 , 264 , 9839 , 7480 , 12458 , 242414 , 389038 , 5683979 , 4935889 , 60686402 , 23311448 , 739391441 , 560345136 , 5752260343 , 7442460610
n×2
15977395842
n×3
23966093763
n×4
31954791684
n×5
39943489605
n÷2
3994348960.5
n÷3
2662899307
n÷3
1997174480.25
n÷5
1597739584.2
n2
6.381929447299E+19
n3
5.0983306507606E+29
n4
4.0729023470302E+39
n5
3.2537186512156E+49
2 √n89379.516227154
3 √n1999.0577162037
4 √n298.96407179986
5 √n95.608212767087
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-7988697920 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 7988697921 can be divided by 8 positive divisors.
The sum of these divisors (counting 7988697921) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011100001010011101101101000001
3
Ternary
202121202010220100210
4
Quaternary
13130022131231001
5
Quinary
112330101313141
6
Senary
3400413304333
8
Octal
73412355501
10
Decimal
7988697921
12
Duodecimal
166b4950a9
16
Hexadecimal
1dc29db41
20
Vigesimal
64g974g1
36
Base36
3o49irl
md5
5c83541a5f6e6d5ef003d297dc4ce4e1
sha1
38003becc39dce9a66bfbd820fde7e1d5d0aeb4b
sha256
eb3dccaecf23c65b3be79fd32f52d948c8db4823fd4f2e518699a51be73d020f
sha512
b6558f2af822fa68c89d2f1dc1e478dc8afa078fb5ddd5ea7bd0202db7ab58e45a48092ef0ed3844208c1779a78331d1b66340693a3d13b9b1a47db1343553e8
ripemd-160
71fa843aaa256b4aacd2713c27020465516a8980
Diameter
15977395842
Circumference
50194469400.723
Area
2.0049422667363E+20
Volume
2.1355837490668E+30
Surface area
8.0197690669451E+20
Circumference
50194469400.723
Perimeter
31954791684
Area
6.381929447299E+19
Diagonal
11297724945.58
Surface area
3.8291576683794E+20
Volume
5.0983306507606E+29
Space diagonal
13836830685.492
Perimeter
23966093763
Area
2.7634565132604E+19
Altitude
6918415342.7459
Surface area
2.7634565132604E+19
Volume
6.0084402931401E+28
Height
3765908315.1933