28291289 is an odd 8-digits composite number following 28291288
and preceding 28291290 . In scientific notation, it is written as 2.8291289 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 26115024 positive integers (up to 28291289) that are relatively prime to 28291289.
28291289 has 4 divisors, whose sum is 30467556
The reverse of 28291289 is 98219282
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million two hundred ninety-one thousand two hundred eighty-nine
Scientific notation
2.8291289 × 10^7
Engineering notation
2.8291289 × 10^6
Prime Factorization
13 × 2176253
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28291289
Product of the distinct prime numbers
The prime factorization of 28291289 is 13 × 2176253.
Since it has a total of 2 prime factors.
8 , 7 , 24 , 57 , 838 , 252 , 2976 , 13 , 18062 , 19108 , 860014 , 960227 , 9768647 , 6719138 , 82259442 , 94888276 , 220867255 , 403711299 , 7422124000 , 4331656997
n×2
56582578
n×3
84873867
n×4
113165156
n×5
141456445
n÷2
14145644.5
n÷3
9430429.6666667
n÷3
7072822.25
n÷5
5658257.8
n2
800397033281521
n3
2.264426378331E+22
n4
6.4063541088586E+29
n5
1.8124401553006E+37
2 √n
5318.9556305726
3 √n
304.70827252109
4 √n
72.931170500497
5 √n
30.926483907714
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
-28291288
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 28291289 can be divided by 4 positive divisors.
The sum of these divisors (counting 28291289) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011111011000011011001
3
Ternary
1222020100100112
4
Quaternary
1223323003121
5
Quinary
24220310124
6
Senary
2450214105
8
Octal
153730331
10
Decimal
28291289
12
Duodecimal
9584335
16
Hexadecimal
1afb0d9
20
Vigesimal
8gg849
36
Base36
gudp5
md5
d7c1fa4714a34aa6c4d653e70d9cbe59
sha1
4118ac9f9e47d7121a0b0d851a9439d6e6f860f8
sha256
225395d49c1e9e430a097239e4317adcea1ace094f7ade17498fe256f0d157da
sha512
5654282e1420dc1f23dfa858b391d439b492ab9b86075b5cf019d9083a0e9e079df72e380ddf62f60029633a4429a77c4df006319703aa366c61a634992638d1
ripemd-160
f93dd4bea8a16ee637b15f454fb9f84ae7736543
Diameter
56582578
Circumference
177759411.36597
Area
2.5145214397123E+15
Volume
9.4852070330129E+22
Surface area
1.0058085758849E+16
Circumference
177759411.36597
Perimeter
113165156
Area
800397033281521
Diagonal
40009924.600817
Surface area
4802382199689126
Volume
2.264426378331E+22
Space diagonal
49001949.959614
Perimeter
84873867
Area
3.4658208196775E+14
Altitude
24500974.979807
Surface area
3.4658208196775E+14
Volume
2.6686520793593E+21
Height
13336641.533606