1285140 is an even 7-digits composite number following 1285139
and preceding 1285141 . In scientific notation, it is written as 1.285140 × 10^6.
The sum of its digits is 21. It has a total of 4 prime factors and 12 positive divisors.
There are 342688 positive integers (up to 1285140) that are relatively prime to 1285140.
1285140 has 12 divisors, whose sum is 2399040
The reverse of 1285140 is 0415821
Previous prime number is 15
Is Prime? no
Number parity even
Number length 7
Sum of Digits 21
Digital Root 3
Name
one million two hundred eighty-five thousand one hundred forty
Scientific notation
1.285140 × 10^6
Engineering notation
1.285140 × 10^6
Prime Factorization
2 × 2 × 15 × 21419
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
642570
Product of the distinct prime numbers
The prime factorization of 1285140 is 2 × 2 × 15 × 21419.
Since it has a total of 4 prime factors.
10 , 1 , 61 , 16 , 43 , 368 , 6505 , 7230 , 46173 , 28821 , 823778 , 971277 , 9953911 , 9318998 , 40267589 , 92647270 , 834129286 , 803529839 , 4285542954 , 3947895748
n×2
2570280
n×3
3855420
n×4
5140560
n×5
6425700
n÷2
642570
n÷3
428380
n÷3
321285
n÷5
257028
n2
1651584819600
n3
2122517715060744000
n4
2.7277324163332E+24
n5
3.5055180375264E+30
2 √n
1133.6401545464
3 √n
108.72184500364
4 √n
33.669573126881
5 √n
16.664415605342
1 , 2 , 4 , 15 , 30 , 60 , 21419 , 42838 , 85676 , 321285 , 642570 , 1285140
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1285139
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1285140 can be divided by 12 positive divisors.
The sum of these divisors (counting 1285140) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100111001110000010100
3
Ternary
2102021212210
4
Quaternary
10321300110
5
Quinary
312111030
6
Senary
43313420
8
Octal
4716024
10
Decimal
1285140
12
Duodecimal
51b870
16
Hexadecimal
139c14
20
Vigesimal
80ch0
36
Base36
rjmc
md5
80982d33a8c8e5d7ebedea578b03dd9f
sha1
ef04da377a74960755cb8253ae04584d0e8a2f82
sha256
f2ade826257a2183c23d7597ed5cbd06b674d364e490096ce0bebec2d8431cc8
sha512
ecd6c8aa0bae7dc50528ff13b3beaca393e55f323d840a824c5dc9565580f2675d0792fc6c171fa305be5fc56eda4f1c5e8aced278c71477deb3639e474e95a1
ripemd-160
6a4b3aba19cc668a484beda0e3fafdf160051b9b
Diameter
2570280
Circumference
8074772.7656688
Area
5188606736035.8
Volume
8.890781414332E+18
Surface area
20754426944143
Circumference
8074772.7656688
Perimeter
5140560
Area
1651584819600
Diagonal
1817462.4175482
Surface area
9909508917600
Volume
2122517715060744000
Space diagonal
2225927.7748391
Perimeter
3855420
Area
715157205139.17
Altitude
1112963.8874195
Surface area
715157205139.17
Volume
2.5014111158467E+17
Height
605820.80584939