28406945 is an odd 8-digits composite number following 28406944
and preceding 28406946 . In scientific notation, it is written as 2.8406945 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 19479024 positive integers (up to 28406945) that are relatively prime to 28406945.
28406945 has 4 divisors, whose sum is 29218608
The reverse of 28406945 is 54960482
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million four hundred six thousand nine hundred forty-five
Scientific notation
2.8406945 × 10^7
Engineering notation
2.8406945 × 10^6
Prime Factorization
35 × 811627
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28406945
Product of the distinct prime numbers
The prime factorization of 28406945 is 35 × 811627.
Since it has a total of 2 prime factors.
1 , 3 , 94 , 6 , 895 , 785 , 9554 , 7808 , 56506 , 36792 , 989575 , 9877 , 2870525 , 1003308 , 2107374 , 56501158 , 206211560 , 230582408 , 574910316 , 5712579030
n×2
56813890
n×3
85220835
n×4
113627780
n×5
142034725
n÷2
14203472.5
n÷3
9468981.6666667
n÷3
7101736.25
n÷5
5681389
n2
806954524233025
n3
2.2923112787389E+22
n4
6.5117560418015E+29
n5
1.8497909573287E+37
2 √n
5329.8166009723
3 √n
305.12292814217
4 √n
73.005592943091
5 √n
30.951728419047
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
-28406944
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 28406945 can be divided by 4 positive divisors.
The sum of these divisors (counting 28406945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010111010010100001
3
Ternary
1222110020000002
4
Quaternary
1230113102201
5
Quinary
24233010240
6
Senary
2452505345
8
Octal
154272241
10
Decimal
28406945
12
Duodecimal
961b255
16
Hexadecimal
1b174a1
20
Vigesimal
8hah75
36
Base36
gwuxt
md5
414a2c4f1763897324a5fc4a46185725
sha1
3698fcaaa6f1e068b001cb69ab0bcac6629d26fe
sha256
8c2ecebe67ec1ba3602db5981dc0bd45da823be47fa9f0e9bcfa8f8219c70781
sha512
145ebded7334774bf2dc83f5ce5740a1073c604884db38aa5ea1ba5d0e3606a2f6197640cc0ee92f261d10fd6e110335dfcd5c4de78f438ca388f48b28844737
ripemd-160
74e1cfec50ef865f8cd70bc502b5fdf3e3a2e262
Diameter
56813890
Circumference
178486099.44586
Area
2.5351224051115E+15
Volume
9.6020110307027E+22
Surface area
1.0140489620446E+16
Circumference
178486099.44586
Perimeter
113627780
Area
806954524233025
Diagonal
40173486.884587
Surface area
4841727145398150
Volume
2.2923112787389E+22
Space diagonal
49202272.027815
Perimeter
85220835
Area
3.4942155884229E+14
Altitude
24601136.013907
Surface area
3.4942155884229E+14
Volume
2.7015147496444E+21
Height
13391162.294862