20123487 is an odd 8-digits composite number following 20123486
and preceding 20123488 . In scientific notation, it is written as 2.0123487 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13415652 positive integers (up to 20123487) that are relatively prime to 20123487.
20123487 has 4 divisors, whose sum is 22359440
The reverse of 20123487 is 78432102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred twenty-three thousand four hundred eighty-seven
Scientific notation
2.0123487 × 10^7
Engineering notation
2.0123487 × 10^6
Prime Factorization
9 × 2235943
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123487
Product of the distinct prime numbers
The prime factorization of 20123487 is 9 × 2235943.
Since it has a total of 2 prime factors.
7 , 7 , 99 , 53 , 222 , 514 , 8042 , 862 , 18694 , 14572 , 614531 , 221137 , 1408662 , 1228073 , 30133475 , 54672441 , 481770713 , 354920630 , 6057633906 , 315184445
n×2
40246974
n×3
60370461
n×4
80493948
n×5
100617435
n÷2
10061743.5
n÷3
6707829
n÷3
5030871.75
n÷5
4024697.4
n2
404954729039169
n3
8.1491012254082E+21
n4
1.6398833257119E+29
n5
3.300017078648E+36
2 √n
4485.9209756749
3 √n
271.999274616
4 √n
66.977018265035
5 √n
28.889541380251
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20123486
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20123487 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000111101011111
3
Ternary
1101212101020100
4
Quaternary
1030300331133
5
Quinary
20122422422
6
Senary
1555152143
8
Octal
114607537
10
Decimal
20123487
12
Duodecimal
68a5653
16
Hexadecimal
1330f5f
20
Vigesimal
65f8e7
36
Base36
bzbdr
md5
2317ec09b3cd49b0bcbc204f154b91cd
sha1
c03eb68eda9d3a0bd8af0824f3f94270f000aa27
sha256
31605b0210c67a1e33e52e0b5735c72fcfa07bdfb595f42a4b70f4f8518348da
sha512
6e842960d8d3b03453a45662504666e39108ec5dbe58e4744016fe90b01b8a277e49ade3b5a050e75d66e527f9957b1daabea1d06534dba6c60975922f8b4ecc
ripemd-160
ff0ec01ec791e22a46ed94ed550f752f0e45a71c
Diameter
40246974
Circumference
126439597.84762
Area
1.2722028017859E+15
Volume
3.4134875390803E+22
Surface area
5.0888112071436E+15
Circumference
126439597.84762
Perimeter
80493948
Area
404954729039169
Diagonal
28458908.237639
Surface area
2429728374235014
Volume
8.1491012254082E+21
Space diagonal
34854901.909452
Perimeter
60370461
Area
1.7535054136528E+14
Altitude
17427450.954726
Surface area
1.7535054136528E+14
Volume
9.603807895103E+20
Height
9486302.7458796