1288506988 is an even 10-digits composite number following 1288506987
and preceding 1288506989 . In scientific notation, it is written as 1.288506988 × 10^9.
The sum of its digits is 55. It has a total of 3 prime factors and 6 positive divisors.
There are 644253492 positive integers (up to 1288506988) that are relatively prime to 1288506988.
1288506988 has 6 divisors, whose sum is 2254887236
The reverse of 1288506988 is 8896058821
Previous prime number is 2
Is Prime? no Number parity even Number length 10 Sum of Digits 55 Digital Root 1
Name
one billion two hundred eighty-eight million five hundred six thousand nine hundred eighty-eight
Scientific notation
1.288506988 × 10^9
Engineering notation
1.288506988 × 10^9
Prime Factorization
2 × 2 × 322126747
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
644253494 Product of the distinct prime numbers
The prime factorization of 1288506988 is 2 × 2 × 322126747.
Since it has a total of 3 prime factors.
9 , 6 , 16 , 89 , 471 , 357 , 1853 , 2683 , 27098 , 25359 , 377078 , 794838 , 2392308 , 5115466 , 6638150 , 12347674 , 859878597 , 119871767 , 7001694219 , 5460890045
n×2
2577013976
n×3
3865520964
n×4
5154027952
n×5
6442534940
n÷2
644253494
n÷3
429502329.33333
n÷3
322126747
n÷5
257701397.6
n2
1660250258124832144
n3
2.1392440594227E+27
n4
2.7564309196036E+36
n5
3.5516805018485E+45
2 √n35895.779529076
3 √n1088.1671039381
4 √n189.46181549081
5 √n66.37695959936
6 divisors
τ Total Divisors
6 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1288506987 Sum of the proper positive divisors of n
A Arithmetic Mean
0.16666666666667 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
6 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1288506988 can be divided by 6 positive divisors.
The sum of these divisors (counting 1288506988) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100110011010000111001101100
3
Ternary
10022210112221022001
4
Quaternary
1030303100321230
5
Quinary
10114324210423
6
Senary
331505102044
8
Octal
11463207154
10
Decimal
1288506988
12
Duodecimal
2bb627924
16
Hexadecimal
4ccd0e6c
20
Vigesimal
102d3798
36
Base36
lb56cs
md5
205e4fbcafcfc29357d9a2ca435138b4
sha1
fd07ee77914418cef89205a05cd165ac408b6f8e
sha256
f2db8a7a7992939f3ed2141bbbb623a13f6d5d87d97a17baf76d54c71c2eb1bd
sha512
393973451192f49046fea64763befa695ff1c54bdec617824aee3ba8720bc957977e0a8c222969ba0e1a56568eded24fa9b7a7714be9900b75b4e1db34e87366
ripemd-160
89c3d3ff059790d5bb6cfd95fae24fb09f03feeb
Diameter
2577013976
Circumference
8095928175.1998
Area
5.2158300140455E+18
Volume
8.9608445617571E+27
Surface area
2.0863320056182E+19
Circumference
8095928175.1998
Perimeter
5154027952
Area
1660250258124832144
Diagonal
1822224057.6421
Surface area
9.961501548749E+18
Volume
2.1392440594227E+27
Space diagonal
2231759569.1235
Perimeter
3865520964
Area
7.1890945008789E+17
Altitude
1115879784.5618
Surface area
7.1890945008789E+17
Volume
2.521123301718E+26
Height
607408019.21404