7644681981 is an odd 10-digits composite number following 7644681980
and preceding 7644681982 . In scientific notation, it is written as 7.644681981 × 10^9.
The sum of its digits is 54. It has a total of 5 prime factors and 24 positive divisors.
There are 5041046400 positive integers (up to 7644681981) that are relatively prime to 7644681981.
7644681981 has 24 divisors, whose sum is 11162923200
The reverse of 7644681981 is 1891864467
Previous prime number is 131
Is Prime? no Number parity odd Number length 10 Sum of Digits 54 Digital Root 9
Name
seven billion six hundred forty-four million six hundred eighty-one thousand nine hundred eighty-one
Scientific notation
7.644681981 × 10^9
Engineering notation
7.644681981 × 10^9
Prime Factorization
3 × 3 × 311 × 131 × 20849
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
2548227327 Product of the distinct prime numbers
The prime factorization of 7644681981 is 3 × 3 × 311 × 131 × 20849.
Since it has a total of 5 prime factors.
1 , 3 , 28 , 81 , 851 , 523 , 2471 , 1173 , 14184 , 51061 , 266869 , 25085 , 2744499 , 2460854 , 29621923 , 78704695 , 634964389 , 514555123 , 2387410957 , 834729688
n×2
15289363962
n×3
22934045943
n×4
30578727924
n×5
38223409905
n÷2
3822340990.5
n÷3
2548227327
n÷3
1911170495.25
n÷5
1528936396.2
n2
5.8441162590626E+19
n3
4.4676410260525E+29
n4
3.415369484944E+39
n5
2.6109413560009E+49
2 √n87433.87204625
3 √n1969.9406460855
4 √n295.69219138532
5 √n94.770219103795
1 , 3 , 9 , 131 , 311 , 393 , 933 , 1179 , 2799 , 20849 , 40741 , 62547 , 122223 , 187641 , 366669 , 2731219 , 6484039 , 8193657 , 19452117 , 24580971 , 58356351 , 849409109 , 2548227327 , 7644681981
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-7644681980 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 7644681981 can be divided by 24 positive divisors.
The sum of these divisors (counting 7644681981) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111000111101010001001011011111101
3
Ternary
201201202211002012200
4
Quaternary
13013222021123331
5
Quinary
111124014310411
6
Senary
3302324022113
8
Octal
70752113375
10
Decimal
7644681981
12
Duodecimal
1594231939
16
Hexadecimal
1c7a896fd
20
Vigesimal
5j8j54j1
36
Base36
3ifg2d9
md5
74a29232af001d9f279368df6ffb2323
sha1
3070cc28d38549296a4913fe9180c8c133f40062
sha256
f8240822b1539647924e137d86f0cbe9d20fef605a5aeadbec1948a55b78bbd9
sha512
c8958b8dbadc26eaff835925146b88df398c168f8e2fa1d3e22453aeead9f26ce8801bf430ddf06c22512a998f96ce1c9d367acd60a7163a5944fbf1eabc7eed
ripemd-160
edeb8e81b14cf1bbe7529c5e5f9b8d2ce412229e
Diameter
15289363962
Circumference
48032953501.08
Area
1.8359832706196E+20
Volume
1.8714010968431E+30
Surface area
7.3439330824783E+20
Circumference
48032953501.08
Perimeter
30578727924
Area
5.8441162590626E+19
Diagonal
10811212937.559
Surface area
3.5064697554376E+20
Volume
4.4676410260525E+29
Space diagonal
13240977598.798
Perimeter
22934045943
Area
2.5305765715089E+19
Altitude
6620488799.3991
Surface area
2.5305765715089E+19
Volume
5.2651654423816E+28
Height
3603737645.8531