1281284 is an even 7-digits composite number following 1281283
and preceding 1281285 . In scientific notation, it is written as 1.281284 × 10^6.
The sum of its digits is 26. It has a total of 5 prime factors and 24 positive divisors.
There are 579744 positive integers (up to 1281284) that are relatively prime to 1281284.
1281284 has 24 divisors, whose sum is 2466240
The reverse of 1281284 is 4821821
Previous prime number is 19
Is Prime? no
Number parity even
Number length 7
Sum of Digits 26
Digital Root 8
Name
one million two hundred eighty-one thousand two hundred eighty-four
Scientific notation
1.281284 × 10^6
Engineering notation
1.281284 × 10^6
Prime Factorization
2 × 2 × 23 × 19 × 733
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
640642
Product of the distinct prime numbers
The prime factorization of 1281284 is 2 × 2 × 23 × 19 × 733.
Since it has a total of 5 prime factors.
8 , 7 , 98 , 1 , 48 , 505 , 2859 , 8291 , 55982 , 46045 , 938114 , 623846 , 9257330 , 4119054 , 12769002 , 91447953 , 529276254 , 844033520 , 9378068855 , 880440836
n×2
2562568
n×3
3843852
n×4
5125136
n×5
6406420
n÷2
640642
n÷3
427094.66666667
n÷3
320321
n÷5
256256.8
n2
1641688688656
n3
2103469449755914304
n4
2.6951417504611E+24
n5
3.4532420025977E+30
2 √n
1131.9381608551
3 √n
108.61299786658
4 √n
33.644288681069
5 √n
16.654403428165
1 , 2 , 4 , 19 , 23 , 38 , 46 , 76 , 92 , 437 , 733 , 874 , 1466 , 1748 , 2932 , 13927 , 16859 , 27854 , 33718 , 55708 , 67436 , 320321 , 640642 , 1281284
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1281283
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1281284 can be divided by 24 positive divisors.
The sum of these divisors (counting 1281284) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100111000110100000100
3
Ternary
2102002120222
4
Quaternary
10320310010
5
Quinary
312000114
6
Senary
43243512
8
Octal
4706404
10
Decimal
1281284
12
Duodecimal
519598
16
Hexadecimal
138d04
20
Vigesimal
80344
36
Base36
rgn8
md5
9585479d3fad9bcd6dbd5c39d1002bf7
sha1
e25d02f3ab3af87266709079b4971a711f3068d9
sha256
2c9bef4021b1da1f43461216921a4d8edae69b85f4d115d7b98057ba43bbd397
sha512
93ac702ed8009f238590342c07a06971282cecc03f017bbd6ecc649ffae19a85d57a921c12d26f0ceb4fa3d3ea546b580992d0435c488e7779ff129205bea11a
ripemd-160
811d4662df7a611b251f4ab8956753ee520dfe9b
Diameter
2562568
Circumference
8050544.8031243
Area
5157517123763.2
Volume
8.810992227205E+18
Surface area
20630068495053
Circumference
8050544.8031243
Perimeter
5125136
Area
1641688688656
Diagonal
1812009.2100516
Surface area
9850132131936
Volume
2103469449755914304
Space diagonal
2219248.9869251
Perimeter
3843852
Area
710872054740.83
Altitude
1109624.4934625
Surface area
710872054740.83
Volume
2.4789625199019E+17
Height
604003.07001722