1285142 is an even 7-digits composite number following 1285141
and preceding 1285143 . In scientific notation, it is written as 1.285142 × 10^6.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 639144 positive integers (up to 1285142) that are relatively prime to 1285142.
1285142 has 8 divisors, whose sum is 1938000
The reverse of 1285142 is 2415821
Previous prime number is 3229
Is Prime? no
Number parity even
Number length 7
Sum of Digits 23
Digital Root 5
Name
one million two hundred eighty-five thousand one hundred forty-two
Scientific notation
1.285142 × 10^6
Engineering notation
1.285142 × 10^6
Prime Factorization
2 × 3229 × 199
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1285142
Product of the distinct prime numbers
The prime factorization of 1285142 is 2 × 3229 × 199.
Since it has a total of 3 prime factors.
6 , 4 , 39 , 91 , 419 , 187 , 1575 , 1408 , 51068 , 98680 , 590101 , 905005 , 8796538 , 2231816 , 79302289 , 60927229 , 688817159 , 391610340 , 4737456776 , 2099030887
n×2
2570284
n×3
3855426
n×4
5140568
n×5
6425710
n÷2
642571
n÷3
428380.66666667
n÷3
321285.5
n÷5
257028.4
n2
1651589960164
n3
2122527624585083288
n4
2.7277493965145E+24
n5
3.5055453149355E+30
2 √n
1133.6410366602
3 √n
108.7219014031
4 √n
33.669586226448
5 √n
16.664420792141
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1285141
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1285142 can be divided by 8 positive divisors.
The sum of these divisors (counting 1285142) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111001110000010110
3
Ternary
2102021212212
4
Quaternary
10321300112
5
Quinary
312111032
6
Senary
43313422
8
Octal
4716026
10
Decimal
1285142
12
Duodecimal
51b872
16
Hexadecimal
139c16
20
Vigesimal
80ch2
36
Base36
rjme
md5
e09cab12be85109e0356d7bfd0069200
sha1
65072a479b3afb995e19f6348dfbbb1264169e4d
sha256
87951cdb0c6172234bddb53a6b4c3e643b1923512fdd7a61e22b92b149bca2e5
sha512
e49c99b2f8dcbab4d8e2575161cbf376bb095827c63bd1fea5807302fcc11b265758e00013110e07446ff3946ecd4a64b710940619c57095b9cfc31a410b33f3
ripemd-160
82045c798d4e69a38210000e17455b820ea94488
Diameter
2570284
Circumference
8074785.3320394
Area
5188622885593.9
Volume
8.8908229232505E+18
Surface area
20754491542376
Circumference
8074785.3320394
Perimeter
5140568
Area
1651589960164
Diagonal
1817465.2459753
Surface area
9909539760984
Volume
2122527624585083288
Space diagonal
2225931.2389407
Perimeter
3855426
Area
715159431068.68
Altitude
1112965.6194703
Surface area
715159431068.68
Volume
2.5014227943331E+17
Height
605821.74865843