1286987 is an odd 7-digits composite number following 1286986
and preceding 1286988 . In scientific notation, it is written as 1.286987 × 10^6.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 1187976 positive integers (up to 1286987) that are relatively prime to 1286987.
1286987 has 4 divisors, whose sum is 1386000
The reverse of 1286987 is 7896821
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 41
Digital Root 5
Name
one million two hundred eighty-six thousand nine hundred eighty-seven
Scientific notation
1.286987 × 10^6
Engineering notation
1.286987 × 10^6
Prime Factorization
13 × 98999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1286987
Product of the distinct prime numbers
The prime factorization of 1286987 is 13 × 98999.
Since it has a total of 2 prime factors.
5 , 5 , 23 , 40 , 918 , 414 , 5566 , 5945 , 1948 , 91920 , 907146 , 178663 , 7164780 , 8457405 , 32974693 , 55505452 , 48656326 , 478765264 , 6253245826 , 3214824716
n×2
2573974
n×3
3860961
n×4
5147948
n×5
6434935
n÷2
643493.5
n÷3
428995.66666667
n÷3
321746.75
n÷5
257397.4
n2
1656335538169
n3
2131682305261506803
n4
2.7434474150016E+24
n5
3.5307811582907E+30
2 √n
1134.4544944598
3 √n
108.77390499286
4 √n
33.681664069042
5 √n
16.669202865339
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1286986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1286987 can be divided by 4 positive divisors.
The sum of these divisors (counting 1286987) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111010001101001011
3
Ternary
2102101102012
4
Quaternary
10322031023
5
Quinary
312140422
6
Senary
43330135
8
Octal
4721513
10
Decimal
1286987
12
Duodecimal
52094b
16
Hexadecimal
13a34b
20
Vigesimal
80h97
36
Base36
rl1n
md5
bc0b8cdf3c212c7b17de83b3a511ed4c
sha1
1baa11b4ab71a057b9c992f66b61a5917041e485
sha256
e4e28b88f844f9c01597d3985c2ce8bb2e3c65acc70a338d08c929c330f4d103
sha512
8320ebec91e4d37314bd584fc0aab743606b225368beac7bad7b437085d26d8694cbe12667f9e4fa8e801e1b37675b3d8a90defc7f4b88828d773298b3ae6d8b
ripemd-160
87536a42711c50d4f545a933aed148b5b5427a06
Diameter
2573974
Circumference
8086377.8089311
Area
5203531558591.4
Volume
8.9291699599959E+18
Surface area
20814126234366
Circumference
8086377.8089311
Perimeter
5147948
Area
1656335538169
Diagonal
1820074.4699979
Surface area
9938013229014
Volume
2131682305261506803
Space diagonal
2229126.8726806
Perimeter
3860961
Area
717214326622.66
Altitude
1114563.4363403
Surface area
717214326622.66
Volume
2.5122116889763E+17
Height
606691.48999929