28261390 is an even 8-digits composite number following 28261389
and preceding 28261391 . In scientific notation, it is written as 2.8261390 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 11289600 positive integers (up to 28261390) that are relatively prime to 28261390.
28261390 has 16 divisors, whose sum is 50937840
The reverse of 28261390 is 09316282
Previous prime number is 1051
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million two hundred sixty-one thousand three hundred ninety
Scientific notation
2.8261390 × 10^7
Engineering notation
2.8261390 × 10^6
Prime Factorization
2 × 5 × 1051 × 2689
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28261390
Product of the distinct prime numbers
The prime factorization of 28261390 is 2 × 5 × 1051 × 2689.
Since it has a total of 4 prime factors.
2 , 6 , 81 , 29 , 163 , 981 , 7768 , 8083 , 11962 , 91579 , 952121 , 618115 , 2765227 , 2634163 , 29512353 , 42566356 , 830093816 , 376934258 , 9009809235 , 4766196484
n×2
56522780
n×3
84784170
n×4
113045560
n×5
141306950
n÷2
14130695
n÷3
9420463.3333333
n÷3
7065347.5
n÷5
5652278
n2
798706164732100
n3
2.2572546416898E+22
n4
6.3793153758106E+29
n5
1.8028831976878E+37
2 √n
5316.1442794567
3 √n
304.6008933684
4 √n
72.911893950553
5 √n
30.919944353597
1 , 2 , 5 , 10 , 1051 , 2102 , 2689 , 5255 , 5378 , 10510 , 13445 , 26890 , 2826139 , 5652278 , 14130695 , 28261390
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28261389
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28261390 can be divided by 16 positive divisors.
The sum of these divisors (counting 28261390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101011110011110000001110
3
Ternary
1222011211100011
4
Quaternary
1223303300032
5
Quinary
24213331030
6
Senary
2445423434
8
Octal
153636016
10
Decimal
28261390
12
Duodecimal
956ab7a
16
Hexadecimal
1af3c0e
20
Vigesimal
8gcd9a
36
Base36
gtqmm
md5
2bd2a25852b3925196b39e96d3641dec
sha1
0fa1692ffac09654b21b8f4b6360dc86cd053967
sha256
53d246ffec191e43abdbf98dde4582b0e7d89d6348228e382a96e352c7536ef9
sha512
0d6e34b27448a48eebe794b5366b4c2940282bc938735679575c66d7224eeeae1236bbf1fa2a0e2a2d516e171198719a1694b5c39fa56094702d57d7f0fc7793
ripemd-160
ec862548660337d0026883a2de2bb20b1c15b451
Diameter
56522780
Circumference
177571550.40847
Area
2.5092094194992E+15
Volume
9.4551661328189E+22
Surface area
1.0036837677997E+16
Circumference
177571550.40847
Perimeter
113045560
Area
798706164732100
Diagonal
39967641.029515
Surface area
4792236988392600
Volume
2.2572546416898E+22
Space diagonal
48950163.372519
Perimeter
84784170
Area
3.4584991440862E+14
Altitude
24475081.686259
Surface area
3.4584991440862E+14
Volume
2.6602001066728E+21
Height
13322547.009838