1288991 is an odd 7-digits composite number following 1288990
and preceding 1288992 . In scientific notation, it is written as 1.288991 × 10^6.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 1075200 positive integers (up to 1288991) that are relatively prime to 1288991.
1288991 has 16 divisors, whose sum is 1526688
The reverse of 1288991 is 1998821
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
one million two hundred eighty-eight thousand nine hundred ninety-one
Scientific notation
1.288991 × 10^6
Engineering notation
1.288991 × 10^6
Prime Factorization
61 × 11 × 17 × 113
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1288991
Product of the distinct prime numbers
The prime factorization of 1288991 is 61 × 11 × 17 × 113.
Since it has a total of 4 prime factors.
3 , 1 , 41 , 14 , 848 , 989 , 1711 , 2754 , 61315 , 2942 , 666106 , 161561 , 4685064 , 391127 , 15404308 , 52347487 , 299163495 , 68011513 , 1855522261 , 9700102886
n×2
2577982
n×3
3866973
n×4
5155964
n×5
6444955
n÷2
644495.5
n÷3
429663.66666667
n÷3
322247.75
n÷5
257798.2
n2
1661497798081
n3
2141655708246226271
n4
2.760574933028E+24
n5
3.5583562434987E+30
2 √n
1135.3373947862
3 √n
108.83033391331
4 √n
33.694768062508
5 √n
16.674390842467
1 , 11 , 17 , 61 , 113 , 187 , 671 , 1037 , 1243 , 1921 , 6893 , 11407 , 21131 , 75823 , 117181 , 1288991
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1288990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1288991 can be divided by 16 positive divisors.
The sum of these divisors (counting 1288991) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111010101100011111
3
Ternary
2102111011102
4
Quaternary
10322230133
5
Quinary
312221431
6
Senary
43343315
8
Octal
4725437
10
Decimal
1288991
12
Duodecimal
521b3b
16
Hexadecimal
13ab1f
20
Vigesimal
8129b
36
Base36
rmlb
md5
e56b7d77466384b5376f446a0e8d79a6
sha1
fc7e46e0b0c1ed56a5e6a0b3a4c171598edd1c9b
sha256
454063fa6e6a43e4969d4ba38279db181753916c382ec1aae3985e4271e92ae2
sha512
5be5084e381cbf15c7ba2037f3e7edf9556006345ae5627c352ee8f0fd4fce770ace02611e249eb4915bebd1976851eb54b4c311b234a6e29d08028d2f89a2d8
ripemd-160
85b164306744526a3cd1642f05fea350cfa9b0e3
Diameter
2577982
Circumference
8098969.3122867
Area
5219749276406.9
Volume
8.9709464527267E+18
Surface area
20878997105628
Circumference
8098969.3122867
Perimeter
5155964
Area
1661497798081
Diagonal
1822908.5539769
Surface area
9968986788486
Volume
2141655708246226271
Space diagonal
2232597.902499
Perimeter
3866973
Area
719449650735.03
Altitude
1116298.9512495
Surface area
719449650735.03
Volume
2.523965457113E+17
Height
607636.18465895