28156955 is an odd 8-digits composite number following 28156954
and preceding 28156956 . In scientific notation, it is written as 2.8156955 × 10^7.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 20816640 positive integers (up to 28156955) that are relatively prime to 28156955.
28156955 has 16 divisors, whose sum is 36439200
The reverse of 28156955 is 55965182
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million one hundred fifty-six thousand nine hundred fifty-five
Scientific notation
2.8156955 × 10^7
Engineering notation
2.8156955 × 10^6
Prime Factorization
5 × 41 × 19 × 7229
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28156955
Product of the distinct prime numbers
The prime factorization of 28156955 is 5 × 41 × 19 × 7229.
Since it has a total of 4 prime factors.
7 , 1 , 65 , 2 , 957 , 303 , 7617 , 86 , 96239 , 34560 , 225604 , 886028 , 7879145 , 2097363 , 44902617 , 37969499 , 419152936 , 821701545 , 2850443972 , 9124448246
n×2
56313910
n×3
84470865
n×4
112627820
n×5
140784775
n÷2
14078477.5
n÷3
9385651.6666667
n÷3
7039238.75
n÷5
5631391
n2
792814114872025
n3
2.2323231355816E+22
n4
6.2855422074031E+29
n5
1.7698172908445E+37
2 √n
5306.3127499234
3 √n
304.22523056578
4 √n
72.844442134753
5 √n
30.897058656442
1 , 5 , 19 , 41 , 95 , 205 , 779 , 3895 , 7229 , 36145 , 137351 , 296389 , 686755 , 1481945 , 5631391 , 28156955
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28156954
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28156955 can be divided by 16 positive divisors.
The sum of these divisors (counting 28156955) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101011011010010000011011
3
Ternary
1221222112002012
4
Quaternary
1223122100123
5
Quinary
24202010310
6
Senary
2443300135
8
Octal
153322033
10
Decimal
28156955
12
Duodecimal
951a64b
16
Hexadecimal
1ada41b
20
Vigesimal
8fjc7f
36
Base36
gri1n
md5
488a237443a7711fee58c0f17e3ecb77
sha1
6e5e366c177f2123cd750bdc6ff8aa22ed52cd95
sha256
b598c485d8751e899eeded5b3c478c0f4c73c51822b88ba9e93b320ebb5801a3
sha512
01ba3754791d71229fb29f4c03ba845c1175f86746733e4f8cdc1c624b3575e0c7e2005a496658a14c2b3c23b25ece057b4d99ad0f8ec6a0447d737ced588c5a
ripemd-160
6505062271f971fb9fed54cb8634a2a302db90a9
Diameter
56313910
Circumference
176915365.95092
Area
2.4906989989442E+15
Volume
9.3507332842424E+22
Surface area
9.962795995777E+15
Circumference
176915365.95092
Perimeter
112627820
Area
792814114872025
Diagonal
39819947.636129
Surface area
4756884689232150
Volume
2.2323231355816E+22
Space diagonal
48769276.646431
Perimeter
84470865
Area
3.4329858197902E+14
Altitude
24384638.323215
Surface area
3.4329858197902E+14
Volume
2.630818044949E+21
Height
13273315.87871