7988971381 is an odd 10-digits composite number following 7988971380
and preceding 7988971382 . In scientific notation, it is written as 7.988971381 × 10^9.
The sum of its digits is 61. It has a total of 3 prime factors and 8 positive divisors.
There are 7518084288 positive integers (up to 7988971381) that are relatively prime to 7988971381.
7988971381 has 8 divisors, whose sum is 8459976960
The reverse of 7988971381 is 1831798897
Previous prime number is 9439
Is Prime? no Number parity odd Number length 10 Sum of Digits 61 Digital Root 7
Name
seven billion nine hundred eighty-eight million nine hundred seventy-one thousand three hundred eighty-one
Scientific notation
7.988971381 × 10^9
Engineering notation
7.988971381 × 10^9
Prime Factorization
17 × 9439 × 49787
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
7988971381 Product of the distinct prime numbers
The prime factorization of 7988971381 is 17 × 9439 × 49787.
Since it has a total of 3 prime factors.
1 , 5 , 94 , 8 , 407 , 497 , 3156 , 524 , 83635 , 1067 , 931197 , 406103 , 3345021 , 2585740 , 1081943 , 87076615 , 873244491 , 406794483 , 4558055752 , 8589174938
n×2
15977942762
n×3
23966914143
n×4
31955885524
n×5
39944856905
n÷2
3994485690.5
n÷3
2662990460.3333
n÷3
1997242845.25
n÷5
1597794276.2
n2
6.3823663726437E+19
n3
5.0988542294107E+29
n4
4.0734600514653E+39
n5
3.2542755772803E+49
2 √n89381.045982915
3 √n1999.080525765
4 √n298.96663021634
5 √n95.608867308394
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
-7988971380 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 7988971381 can be divided by 8 positive divisors.
The sum of these divisors (counting 7988971381) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011100001011100000011101110101
3
Ternary
202121202122210110221
4
Quaternary
13130023200131311
5
Quinary
112330134041011
6
Senary
3400423214341
8
Octal
73413403565
10
Decimal
7988971381
12
Duodecimal
166b5a73b1
16
Hexadecimal
1dc2e0775
20
Vigesimal
64gb1891
36
Base36
3o4fdrp
md5
556dd4615e12e0dcea23ca80327d5576
sha1
c6837110cc03ca0c466b4a7ea435f0c20d64d4eb
sha256
6a37027daabdb0421f273624d12c79f3c63fb42e41887247c14c87a2ca224e46
sha512
733cc8e1ff5a85341a1a46cf945e0be7eb4492ad6533f39469f14ff16a9e626ce3873036c083b5ed8bcf3320cede4e4a521fdeb6a7dcabc67fa3d29693134fac
ripemd-160
db05444490d97bd71dfc88fb8f444109af5fdc70
Diameter
15977942762
Circumference
50196187600.577
Area
2.0050795308816E+20
Volume
2.1358030651789E+30
Surface area
8.0203181235264E+20
Circumference
50196187600.577
Perimeter
31955885524
Area
6.3823663726437E+19
Diagonal
11298111676.421
Surface area
3.8294198235862E+20
Volume
5.0988542294107E+29
Space diagonal
13837304332.106
Perimeter
23966914143
Area
2.7636457074845E+19
Altitude
6918652166.0528
Surface area
2.7636457074845E+19
Volume
6.0090573364967E+28
Height
3766037225.4736