665996988 is an even 9-digits composite number following 665996987
and preceding 665996989 . In scientific notation, it is written as 6.65996988 × 10^8.
The sum of its digits is 66. It has a total of 4 prime factors and 12 positive divisors.
There are 221998992 positive integers (up to 665996988) that are relatively prime to 665996988.
665996988 has 12 divisors, whose sum is 1553993000
The reverse of 665996988 is 889699566
Previous prime number is 3
Is Prime? no Number parity even Number length 9 Sum of Digits 66 Digital Root 3
Name
six hundred sixty-five million nine hundred ninety-six thousand nine hundred eighty-eight
Scientific notation
6.65996988 × 10^8
Engineering notation
6.65996988 × 10^6
Prime Factorization
2 × 2 × 3 × 55499749
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
332998494 Product of the distinct prime numbers
The prime factorization of 665996988 is 2 × 2 × 3 × 55499749.
Since it has a total of 4 prime factors.
2 , 2 , 32 , 33 , 407 , 518 , 927 , 9710 , 65250 , 89999 , 652519 , 945625 , 4663369 , 3607128 , 73751604 , 67554799 , 542897740 , 876677964 , 488235867 , 1269395936
n×2
1331993976
n×3
1997990964
n×4
2663987952
n×5
3329984940
n÷2
332998494
n÷3
221998996
n÷3
166499247
n÷5
133199397.6
n2
443551988025072144
n3
2.9540428804611E+26
n4
1.9673836608099E+35
n5
1.3102715923398E+44
2 √n25806.917444747
3 √n873.28785763763
4 √n160.64531566388
5 √n58.169382428194
1 , 2 , 3 , 4 , 6 , 12 , 55499749 , 110999498 , 166499247 , 221998996 , 332998494 , 665996988
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
-665996987 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 665996988 can be divided by 12 positive divisors.
The sum of these divisors (counting 665996988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100111101100100100111010111100
3
Ternary
1201102012011010010
4
Quaternary
213230210322330
5
Quinary
2330443400423
6
Senary
150030343220
8
Octal
4754447274
10
Decimal
665996988
12
Duodecimal
16705ab10
16
Hexadecimal
27b24ebc
20
Vigesimal
a829c98
36
Base36
b0imkc
md5
b9bad9c788a8f686a1520497d71d6be6
sha1
478c3078a71faf45a941cdc0828868d16af74f57
sha256
626b9798fa22183fd95bb68f5a7da2d89ce07f13959594f7887ac2d54093dda4
sha512
c371c7353c0ca4670fd9df8e1c8e0807b8e822e868056a027a25fbae76e17667527ee9fb4b4b194c1eff1cbb5a1a43c92bded156ec17cc59c4240187cdf31ed0
ripemd-160
c66a19ebfa3e5f95ea5892e8085c4a00eff1c4f6
Diameter
1331993976
Circumference
4184582489.6275
Area
1.3934596670647E+18
Volume
1.2373865882194E+27
Surface area
5.5738386682589E+18
Circumference
4184582489.6275
Perimeter
2663987952
Area
443551988025072144
Diagonal
941861972.92923
Surface area
2661311928150432864
Volume
2.9540428804611E+26
Space diagonal
1153540620.9038
Perimeter
1997990964
Area
1.920636447644E+17
Altitude
576770310.45192
Surface area
1.920636447644E+17
Volume
3.4813729211498E+25
Height
313953990.97641