28681907 is an odd 8-digits composite number following 28681906
and preceding 28681908 . In scientific notation, it is written as 2.8681907 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 26994720 positive integers (up to 28681907) that are relatively prime to 28681907.
28681907 has 4 divisors, whose sum is 30369096
The reverse of 28681907 is 70918682
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million six hundred eighty-one thousand nine hundred seven
Scientific notation
2.8681907 × 10^7
Engineering notation
2.8681907 × 10^6
Prime Factorization
17 × 1687171
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28681907
Product of the distinct prime numbers
The prime factorization of 28681907 is 17 × 1687171.
Since it has a total of 2 prime factors.
7 , 9 , 69 , 49 , 468 , 762 , 8130 , 1541 , 51335 , 22176 , 667772 , 312981 , 5970634 , 4967558 , 26274938 , 54783961 , 912524348 , 62691593 , 9452631731 , 720503400
n×2
57363814
n×3
86045721
n×4
114727628
n×5
143409535
n÷2
14340953.5
n÷3
9560635.6666667
n÷3
7170476.75
n÷5
5736381.4
n2
822651789156649
n3
2.3595222109975E+22
n4
6.7675596620264E+29
n5
1.9410651684319E+37
2 √n
5355.5491781889
3 √n
306.10423706147
4 √n
73.181617761491
5 √n
31.011416558316
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
-28681906
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 28681907 can be divided by 4 positive divisors.
The sum of these divisors (counting 28681907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011010011010110011
3
Ternary
1222222012011212
4
Quaternary
1231122122303
5
Quinary
24320310112
6
Senary
2502430335
8
Octal
155323263
10
Decimal
28681907
12
Duodecimal
97323ab
16
Hexadecimal
1b5a6b3
20
Vigesimal
8j54f7
36
Base36
h2r3n
md5
3c22a6311cea8dd394afda6dcb22f459
sha1
c8a645bef2d7380c445c00991c482add5fb84ae5
sha256
b7883761b37304a82add10aa0406d50c67c9f262ad2f6f8e609adc74933cd47d
sha512
ede7f7b8f81ff04fa25801fc5224405548776951170ae2d22c188575ef61a43e7ba3ad50af8a50952e9f4b6d50792668540e14ef21f7a0e8436c6ab09a1e95b2
ripemd-160
c2bddacf9cb87f947f9e17a9da8be7832d079bfa
Diameter
57363814
Circumference
180213736.64429
Area
2.584436817277E+15
Volume
9.8835435254021E+22
Surface area
1.0337747269108E+16
Circumference
180213736.64429
Perimeter
114727628
Area
822651789156649
Diagonal
40562341.874124
Surface area
4935910734939894
Volume
2.3595222109975E+22
Space diagonal
49678520.181965
Perimeter
86045721
Area
3.5621867393919E+14
Altitude
24839260.090983
Surface area
3.5621867393919E+14
Volume
2.7807235929276E+21
Height
13520780.624708