28391007 is an odd 8-digits composite number following 28391006
and preceding 28391008 . In scientific notation, it is written as 2.8391007 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 18896792 positive integers (up to 28391007) that are relatively prime to 28391007.
28391007 has 8 divisors, whose sum is 37915776
The reverse of 28391007 is 70019382
Previous prime number is 647
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-eight million three hundred ninety-one thousand seven
Scientific notation
2.8391007 × 10^7
Engineering notation
2.8391007 × 10^6
Prime Factorization
3 × 647 × 14627
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28391007
Product of the distinct prime numbers
The prime factorization of 28391007 is 3 × 647 × 14627.
Since it has a total of 3 prime factors.
2 , 6 , 84 , 57 , 98 , 603 , 5705 , 647 , 44449 , 84688 , 531330 , 533869 , 4756082 , 3030018 , 94979456 , 55624635 , 263686716 , 500901587 , 2639097857 , 2759603454
n×2
56782014
n×3
85173021
n×4
113564028
n×5
141955035
n÷2
14195503.5
n÷3
9463669
n÷3
7097751.75
n÷5
5678201.4
n2
806049278474049
n3
2.2884550707502E+22
n4
6.4971543932853E+29
n5
1.8446075585985E+37
2 √n
5328.3212177946
3 √n
305.06585337871
4 √n
72.995350658755
5 √n
30.948254484099
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28391006
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28391007 can be divided by 8 positive divisors.
The sum of these divisors (counting 28391007) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100010011011001011111
3
Ternary
1222102102010210
4
Quaternary
1230103121133
5
Quinary
24232003012
6
Senary
2452303503
8
Octal
154233137
10
Decimal
28391007
12
Duodecimal
9611b93
16
Hexadecimal
1b1365f
20
Vigesimal
8h8ha7
36
Base36
gwin3
md5
5da1ea6dab6d8f5e7eb5c650893a4d4d
sha1
a1556f401dbaa13817582747bfe13b8c3127cb06
sha256
aa3568ffb7ced11085bdf1bd42074581202290c5f9cbc5f9eb45f463abeb94ce
sha512
a31af41ae2db2ea175b3499f7dca9e073464e4d7ea69eb51f6246b2de357496ea86da2bfbaac8a88ea1c6e1222ab4c8c9cb1447aef8e1bd57d1a9c6f32179961
ripemd-160
d2572440352df0b2660032075c309d013624d914
Diameter
56782014
Circumference
178385958.03843
Area
2.5322784916854E+15
Volume
9.585858184452E+22
Surface area
1.0129113966742E+16
Circumference
178385958.03843
Perimeter
113564028
Area
806049278474049
Diagonal
40150947.148829
Surface area
4836295670844294
Volume
2.2884550707502E+22
Space diagonal
49174666.602044
Perimeter
85173021
Area
3.4902957593032E+14
Altitude
24587333.301022
Surface area
3.4902957593032E+14
Volume
2.696970164947E+21
Height
13383649.04961