28008907 is an odd 8-digits composite number following 28008906
and preceding 28008908 . In scientific notation, it is written as 2.8008907 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 6 positive divisors.
There are 26534412 positive integers (up to 28008907) that are relatively prime to 28008907.
28008907 has 6 divisors, whose sum is 29561028
The reverse of 28008907 is 70980082
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million eight thousand nine hundred seven
Scientific notation
2.8008907 × 10^7
Engineering notation
2.8008907 × 10^6
Prime Factorization
19 × 19 × 77587
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1474153
Product of the distinct prime numbers
The prime factorization of 28008907 is 19 × 19 × 77587.
Since it has a total of 3 prime factors.
7 , 8 , 80 , 84 , 993 , 342 , 7723 , 1077 , 11990 , 9649 , 311973 , 667880 , 8092924 , 8055073 , 9652685 , 92442023 , 144934861 , 263125167 , 4037333599 , 9276369595
n×2
56017814
n×3
84026721
n×4
112035628
n×5
140044535
n÷2
14004453.5
n÷3
9336302.3333333
n÷3
7002226.75
n÷5
5601781.4
n2
784498871334649
n3
2.1972955928817E+22
n4
6.1543847912534E+29
n5
1.7237759126043E+37
2 √n
5292.3441875978
3 √n
303.69109246202
4 √n
72.748499555646
5 √n
30.864499037138
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28008906
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28008907 can be divided by 6 positive divisors.
The sum of these divisors (counting 28008907) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1101010110110000111001011
3
Ternary
1221200222222221
4
Quaternary
1222312013023
5
Quinary
24132241112
6
Senary
2440154511
8
Octal
152660713
10
Decimal
28008907
12
Duodecimal
9468a37
16
Hexadecimal
1ab61cb
20
Vigesimal
8f1257
36
Base36
gobt7
md5
d1479e3af565fdd91879c6165eae63f2
sha1
3c1a3c05040180d90caeeaa807a558e86e8cf494
sha256
08752453df9f1260775e020dfe94ac078376124879cacabab248732b8f3a172f
sha512
9c8d03186393876c7aebcbcf3be64fbd98b2898449182bdd8291986c213cf1c0f90566f60764adc4b9a44b10ab8b3abc46b227c77faf843a002628b1c2f23568
ripemd-160
fad990c29cee82e1f143e6cddf6b3ab60f96e3e1
Diameter
56017814
Circumference
175985152.93256
Area
2.4645758909344E+15
Volume
9.2040102564832E+22
Surface area
9.8583035637377E+15
Circumference
175985152.93256
Perimeter
112035628
Area
784498871334649
Diagonal
39610576.146647
Surface area
4706993228007894
Volume
2.1972955928817E+22
Space diagonal
48512849.988472
Perimeter
84026721
Area
3.3969797590801E+14
Altitude
24256424.994236
Surface area
3.3969797590801E+14
Volume
2.5895376899966E+21
Height
13203525.382216