1285220 is an even 7-digits composite number following 1285219
and preceding 1285221 . In scientific notation, it is written as 1.285220 × 10^6.
The sum of its digits is 20. It has a total of 5 prime factors and 24 positive divisors.
There are 509792 positive integers (up to 1285220) that are relatively prime to 1285220.
1285220 has 24 divisors, whose sum is 2721600
The reverse of 1285220 is 0225821
Previous prime number is 359
Is Prime? no
Number parity even
Number length 7
Sum of Digits 20
Digital Root 2
Name
one million two hundred eighty-five thousand two hundred twenty
Scientific notation
1.285220 × 10^6
Engineering notation
1.285220 × 10^6
Prime Factorization
2 × 2 × 5 × 359 × 179
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
642610
Product of the distinct prime numbers
The prime factorization of 1285220 is 2 × 2 × 5 × 359 × 179.
Since it has a total of 5 prime factors.
10 , 1 , 81 , 55 , 645 , 513 , 9663 , 2671 , 44885 , 84054 , 141154 , 773935 , 7283390 , 5009454 , 4519715 , 36777479 , 878289467 , 356739592 , 4214478337 , 3141373918
n×2
2570440
n×3
3855660
n×4
5140880
n×5
6426100
n÷2
642610
n÷3
428406.66666667
n÷3
321305
n÷5
257044
n2
1651790448400
n3
2122914120092648000
n4
2.7284116854255E+24
n5
3.5066092663425E+30
2 √n
1133.6754385626
3 √n
108.7241009361
4 √n
33.670097097611
5 √n
16.664623072241
1 , 2 , 4 , 5 , 10 , 20 , 179 , 358 , 359 , 716 , 718 , 895 , 1436 , 1790 , 1795 , 3580 , 3590 , 7180 , 64261 , 128522 , 257044 , 321305 , 642610 , 1285220
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
-1285219
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 1285220 can be divided by 24 positive divisors.
The sum of these divisors (counting 1285220) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100111001110001100100
3
Ternary
2102021222202
4
Quaternary
10321301210
5
Quinary
312111340
6
Senary
43314032
8
Octal
4716144
10
Decimal
1285220
12
Duodecimal
51b918
16
Hexadecimal
139c64
20
Vigesimal
80d10
36
Base36
rjok
md5
697564e178ea4ec88df814b07a1543fc
sha1
814311b05bb96967895dff6c3e456cf05bcd6c63
sha256
2f933c7622a339dac2997bdfcdea9a9e9c09cf6efc7291b3d8f789e1dcafefb2
sha512
32d47cd203bc180e283b38d24a22ff9f10bfaefe506c848d63621a64f197c082e304f56b1c044ed346681480149d37d93aaae53f67be2c66a82c30fd7c0e2752
ripemd-160
99c1b41ea8d9ad038f4fa47dbd4401adaa3c66e7
Diameter
2570440
Circumference
8075275.4204933
Area
5189252737963.2
Volume
8.8924418718468E+18
Surface area
20757010951853
Circumference
8075275.4204933
Perimeter
5140880
Area
1651790448400
Diagonal
1817575.5546331
Surface area
9910742690400
Volume
2122914120092648000
Space diagonal
2226066.3389037
Perimeter
3855660
Area
715246245021.44
Altitude
1113033.1694518
Surface area
715246245021.44
Volume
2.501878283657E+17
Height
605858.51821105