1256989 is an odd 7-digits prime number following 1256988
and preceding 1256990 . In scientific notation, it is written as 1.256989 × 10^6.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 1256988 positive integers (up to 1256989) that are relatively prime to 1256989.
1256989 has 2 divisors, whose sum is 1256990
The reverse of 1256989 is 9896521
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 7
Sum of Digits 40
Digital Root 4
Name
one million two hundred fifty-six thousand nine hundred eighty-nine
Scientific notation
1.256989 × 10^6
Engineering notation
1.256989 × 10^6
Prime Factorization
1256989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1256989
Product of the distinct prime numbers
The prime factorization of 1256989 is 1256989.
Since it has a total of 1 prime factors.
7 , 4 , 69 , 55 , 500 , 559 , 4709 , 1223 , 51125 , 11420 , 412480 , 553899 , 5647711 , 155515 , 94188701 , 52465647 , 169868043 , 269273619 , 5258088678 , 8223018463
n×2
2513978
n×3
3770967
n×4
5027956
n×5
6284945
n÷2
628494.5
n÷3
418996.33333333
n÷3
314247.25
n÷5
251397.8
n2
1580021346121
n3
1986069451839289669
n4
2.496467454198E+24
n5
3.1380321287849E+30
2 √n
1121.1552078102
3 √n
107.9221260752
4 √n
33.48365583102
5 √n
16.590760554555
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1256990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
628495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1121.1556537787
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999984088974
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1256989 can be divided by 2 positive divisors.
The sum of these divisors (counting 1256989) is 1256990, the average is 628495.
Base
System
Value
2
Binary
100110010111000011101
3
Ternary
2100212021011
4
Quaternary
10302320131
5
Quinary
310210424
6
Senary
42535221
8
Octal
4627035
10
Decimal
1256989
12
Duodecimal
507511
16
Hexadecimal
132e1d
20
Vigesimal
7h299
36
Base36
qxwd
md5
b2dcb73a9c98381e812fac04586c83ca
sha1
ec5ee4f0fba7984cbca6bc2508c991597274883d
sha256
00552d32693eb8af195a5e14e43961e4733d080d61532e3b4f53aaf6c20da25e
sha512
966958e0b1cb78e6a1f5a53933d1c685f27b3d8e715f724b9a0cccfdc4adcd0c56f25611def9926be340fc9d5f46c09f2a4de73dd89a11225217463e9a2cc595
ripemd-160
fea4e328f2cfb2a35d9479fba908037439856bc2
Diameter
2513978
Circumference
7897894.8160864
Area
4963783453488.8
Volume
8.3192282658899E+18
Surface area
19855133813955
Circumference
7897894.8160864
Perimeter
5027956
Area
1580021346121
Diagonal
1777650.8915538
Surface area
9480128076726
Volume
1986069451839289669
Space diagonal
2177168.8125552
Perimeter
3770967
Area
684169312131.24
Altitude
1088584.4062776
Surface area
684169312131.24
Volume
2.340605295505E+17
Height
592550.2971846