28125621 is an odd 8-digits composite number following 28125620
and preceding 28125622 . In scientific notation, it is written as 2.8125621 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 18103680 positive integers (up to 28125621) that are relatively prime to 28125621.
28125621 has 12 divisors, whose sum is 42027180
The reverse of 28125621 is 12652182
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-eight million one hundred twenty-five thousand six hundred twenty-one
Scientific notation
2.8125621 × 10^7
Engineering notation
2.8125621 × 10^6
Prime Factorization
3 × 3 × 29 × 107761
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9375207
Product of the distinct prime numbers
The prime factorization of 28125621 is 3 × 3 × 29 × 107761.
Since it has a total of 4 prime factors.
9 , 7 , 37 , 86 , 629 , 675 , 4727 , 6194 , 92458 , 39557 , 138579 , 448177 , 3279864 , 264442 , 84349915 , 19187910 , 919035994 , 995687841 , 3554858607 , 4525586138
n×2
56251242
n×3
84376863
n×4
112502484
n×5
140628105
n÷2
14062810.5
n÷3
9375207
n÷3
7031405.25
n÷5
5625124.2
n2
791050556635641
n3
2.2248788147773E+22
n4
6.2576098315356E+29
n5
1.7599916248764E+37
2 √n
5303.3594070174
3 √n
304.11233801253
4 √n
72.824167739957
5 √n
30.890178937594
1 , 3 , 9 , 29 , 87 , 261 , 107761 , 323283 , 969849 , 3125069 , 9375207 , 28125621
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28125620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28125621 can be divided by 12 positive divisors.
The sum of these divisors (counting 28125621) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101011010010100110110101
3
Ternary
1221220221002200
4
Quaternary
1223102212311
5
Quinary
24200004441
6
Senary
2442455113
8
Octal
153224665
10
Decimal
28125621
12
Duodecimal
9504499
16
Hexadecimal
1ad29b5
20
Vigesimal
8ffe11
36
Base36
gqtv9
md5
5117309dc0ac3bb428a8484011c321ac
sha1
94f054369d2487150907bf299ffcf9d0b40107cb
sha256
1adc359e7f39ee583c1b4241ee42e4aa1aa43c021262f97618da3beaa0ea718b
sha512
b86436fd238a9ef89ff5d89cdaf5c1ed80f5304c51bb995320f1642326ac54b68d4a3c640beb2897679a46b09ade56006a15295130a229ca44db4b8fccbb57d1
ripemd-160
d12ea0c8ab05ec4c92ab477aa80f7d57bd041dc7
Diameter
56251242
Circumference
176718488.6225
Area
2.4851586173446E+15
Volume
9.3195505861759E+22
Surface area
9.9406344693786E+15
Circumference
176718488.6225
Perimeter
112502484
Area
791050556635641
Diagonal
39775634.668366
Surface area
4746303339813846
Volume
2.2248788147773E+22
Space diagonal
48715004.566426
Perimeter
84376863
Area
3.4253493886214E+14
Altitude
24357502.283213
Surface area
3.4253493886214E+14
Volume
2.6220448287455E+21
Height
13258544.889455