1285138 is an even 7-digits composite number following 1285137
and preceding 1285139 . In scientific notation, it is written as 1.285138 × 10^6.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 631620 positive integers (up to 1285138) that are relatively prime to 1285138.
1285138 has 8 divisors, whose sum is 1960560
The reverse of 1285138 is 8315821
Previous prime number is 59
Is Prime? no
Number parity even
Number length 7
Sum of Digits 28
Digital Root 1
Name
one million two hundred eighty-five thousand one hundred thirty-eight
Scientific notation
1.285138 × 10^6
Engineering notation
1.285138 × 10^6
Prime Factorization
2 × 59 × 10891
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1285138
Product of the distinct prime numbers
The prime factorization of 1285138 is 2 × 59 × 10891.
Since it has a total of 3 prime factors.
9 , 7 , 80 , 28 , 145 , 404 , 2070 , 3188 , 82560 , 58317 , 188573 , 463639 , 5013933 , 2316113 , 92550473 , 59197928 , 407360736 , 352256681 , 8989485024 , 8558095385
n×2
2570276
n×3
3855414
n×4
5140552
n×5
6425690
n÷2
642569
n÷3
428379.33333333
n÷3
321284.5
n÷5
257027.6
n2
1651579679044
n3
2122507805567248072
n4
2.7277154362311E+24
n5
3.5054907602871E+30
2 √n
1133.6392724319
3 √n
108.72178860413
4 √n
33.6695600273
5 √n
16.664410418537
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
-1285137
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 1285138 can be divided by 8 positive divisors.
The sum of these divisors (counting 1285138) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111001110000010010
3
Ternary
2102021212201
4
Quaternary
10321300102
5
Quinary
312111023
6
Senary
43313414
8
Octal
4716022
10
Decimal
1285138
12
Duodecimal
51b86a
16
Hexadecimal
139c12
20
Vigesimal
80cgi
36
Base36
rjma
md5
3be6c4c9babcb91d5599c3b308001d86
sha1
f2b3207ec5b0dcaa214f09f2ddf5283ba1b538d4
sha256
2f22bdb7904d0f5058e06c6bb28cafa680abefc861f9b0003d133e0ada1fe986
sha512
67ad968223fc45cea81ba7b78772d42c340e9a5b7f02ba849f27141e52f43268225588bae7b373242778d2fbb8479c2eae522131c9368c8c77bfaad3ce932684
ripemd-160
ae73be305028edd71bf2786b7fe36f46846009c5
Diameter
2570276
Circumference
8074760.1992982
Area
5188590586502.8
Volume
8.8907399055427E+18
Surface area
20754362346011
Circumference
8074760.1992982
Perimeter
5140552
Area
1651579679044
Diagonal
1817459.589121
Surface area
9909478074264
Volume
2122507805567248072
Space diagonal
2225924.3107375
Perimeter
3855414
Area
715154979213.13
Altitude
1112962.1553687
Surface area
715154979213.13
Volume
2.5013994373966E+17
Height
605819.86304034