28609931 is an odd 8-digits composite number following 28609930
and preceding 28609932 . In scientific notation, it is written as 2.8609931 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 23726160 positive integers (up to 28609931) that are relatively prime to 28609931.
28609931 has 12 divisors, whose sum is 33793776
The reverse of 28609931 is 13990682
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million six hundred nine thousand nine hundred thirty-one
Scientific notation
2.8609931 × 10^7
Engineering notation
2.8609931 × 10^6
Prime Factorization
7 × 31 × 31 × 4253
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
922901
Product of the distinct prime numbers
The prime factorization of 28609931 is 7 × 31 × 31 × 4253.
Since it has a total of 4 prime factors.
6 , 8 , 91 , 51 , 28 , 314 , 1023 , 4335 , 25655 , 30603 , 507286 , 657850 , 1733602 , 1877932 , 52020780 , 91942054 , 180199293 , 152419202 , 7510191310 , 7129872146
n×2
57219862
n×3
85829793
n×4
114439724
n×5
143049655
n÷2
14304965.5
n÷3
9536643.6666667
n÷3
7152482.75
n÷5
5721986.2
n2
818528151824761
n3
2.3418033945264E+22
n4
6.6998833532966E+29
n5
1.9168320044586E+37
2 √n
5348.8251981159
3 √n
305.8479708157
4 √n
73.135662970373
5 √n
30.995836550902
1 , 7 , 31 , 217 , 961 , 4253 , 6727 , 29771 , 131843 , 922901 , 4087133 , 28609931
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28609930
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28609931 can be divided by 12 positive divisors.
The sum of these divisors (counting 28609931) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101101001000110110001011
3
Ternary
1222211112110002
4
Quaternary
1231020312023
5
Quinary
24311004211
6
Senary
2501113215
8
Octal
155106613
10
Decimal
28609931
12
Duodecimal
96b880b
16
Hexadecimal
1b48d8b
20
Vigesimal
8ig4gb
36
Base36
h17kb
md5
345caeb30013d4fcde8026de269b88f6
sha1
871a7250f8f683b43d6fe9a7e66617286fd5400f
sha256
d208f41daa97305c7439a78d58b7731d8b84f61e8635274dea3e7e2896b2891d
sha512
726887ee28101651f7f5ec3ab4320ac82659171f0a1077299060528f9fd295904848e49e29a12c0a2a6ce85f1d9dad2a75c03827a4aeab9dd28b4b8dfacd75ac
ripemd-160
0b34d0ce2b92ff221d825b5b6f0148fc3975dfbb
Diameter
57219862
Circumference
179761498.09862
Area
2.5714820285291E+15
Volume
9.8093231205277E+22
Surface area
1.0285928114116E+16
Circumference
179761498.09862
Perimeter
114439724
Area
818528151824761
Diagonal
40460552.438758
Surface area
4911168910948566
Volume
2.3418033945264E+22
Space diagonal
49553854.09304
Perimeter
85829793
Area
3.5443308659648E+14
Altitude
24776927.04652
Surface area
3.5443308659648E+14
Volume
2.7598417674588E+21
Height
13486850.812919