20131228 is an even 8-digits composite number following 20131227
and preceding 20131229 . In scientific notation, it is written as 2.0131228 × 10^7.
The sum of its digits is 19. It has a total of 5 prime factors and 24 positive divisors.
There are 9092544 positive integers (up to 20131228) that are relatively prime to 20131228.
20131228 has 24 divisors, whose sum is 38751552
The reverse of 20131228 is 82213102
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred thirty-one thousand two hundred twenty-eight
Scientific notation
2.0131228 × 10^7
Engineering notation
2.0131228 × 10^6
Prime Factorization
2 × 2 × 47 × 13 × 8237
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10065614
Product of the distinct prime numbers
The prime factorization of 20131228 is 2 × 2 × 47 × 13 × 8237.
Since it has a total of 5 prime factors.
1 , 9 , 84 , 25 , 425 , 546 , 7633 , 8383 , 78167 , 48414 , 132962 , 823633 , 6474823 , 9810147 , 33386393 , 35134769 , 515038232 , 17013408 , 2161613270 , 5456197944
n×2
40262456
n×3
60393684
n×4
80524912
n×5
100656140
n÷2
10065614
n÷3
6710409.3333333
n÷3
5032807
n÷5
4026245.6
n2
405266340787984
n3
8.1585091071286E+21
n4
1.6424080697568E+29
n5
3.3063691321315E+36
2 √n
4486.7837032779
3 √n
272.03414724119
4 √n
66.983458430256
5 √n
28.891763654524
1 , 2 , 4 , 13 , 26 , 47 , 52 , 94 , 188 , 611 , 1222 , 2444 , 8237 , 16474 , 32948 , 107081 , 214162 , 387139 , 428324 , 774278 , 1548556 , 5032807 , 10065614 , 20131228
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
-20131227
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 20131228 can be divided by 24 positive divisors.
The sum of these divisors (counting 20131228) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100110010110110011100
3
Ternary
1101212202212001
4
Quaternary
1030302312130
5
Quinary
20123144403
6
Senary
1555252044
8
Octal
114626634
10
Decimal
20131228
12
Duodecimal
68aa024
16
Hexadecimal
1332d9c
20
Vigesimal
65g818
36
Base36
bzhcs
md5
79fce13af4a358efe1ba737661b2e63c
sha1
6061086ad091739dbea34dbb2f701da137f20348
sha256
280bf77384ae33aa955d22c17836f9270de7c165c5b88efd7f46c91c568de6fa
sha512
ffb23ef69229623dded941aaff2312eb98f6d2c7f34e71170cf9419b5f1ff3a59421cc1a694d49be27e97fbeeef982667427cca5d5cc72465ffbc130c833e0b8
ripemd-160
a9d65c99f9d688c057c5230e6ed792cd2d87f54b
Diameter
40262456
Circumference
126488235.98508
Area
1.2731817589667E+15
Volume
3.4174283033601E+22
Surface area
5.092727035867E+15
Circumference
126488235.98508
Perimeter
80524912
Area
405266340787984
Diagonal
28469855.664825
Surface area
2431598044727904
Volume
8.1585091071286E+21
Space diagonal
34868309.714753
Perimeter
60393684
Area
1.7548547321058E+14
Altitude
17434154.857377
Surface area
1.7548547321058E+14
Volume
9.6148951900381E+20
Height
9489951.888275