28856871 is an odd 8-digits composite number following 28856870
and preceding 28856872 . In scientific notation, it is written as 2.8856871 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 18105984 positive integers (up to 28856871) that are relatively prime to 28856871.
28856871 has 16 divisors, whose sum is 45266400
The reverse of 28856871 is 17865882
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-eight million eight hundred fifty-six thousand eight hundred seventy-one
Scientific notation
2.8856871 × 10^7
Engineering notation
2.8856871 × 10^6
Prime Factorization
3 × 9 × 17 × 62869
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28856871
Product of the distinct prime numbers
The prime factorization of 28856871 is 3 × 9 × 17 × 62869.
Since it has a total of 4 prime factors.
7 , 9 , 65 , 53 , 971 , 501 , 1295 , 3226 , 24053 , 7753 , 52145 , 25332 , 1476097 , 3987396 , 34221996 , 13760698 , 687148551 , 470771625 , 3766627316 , 2105404301
n×2
57713742
n×3
86570613
n×4
115427484
n×5
144284355
n÷2
14428435.5
n÷3
9618957
n÷3
7214217.75
n÷5
5771374.2
n2
832719003910641
n3
2.4029664875098E+22
n4
6.9342093947393E+29
n5
2.0009958599098E+37
2 √n
5371.8591753694
3 √n
306.72540318434
4 √n
73.292968116794
5 √n
31.049159447986
1 , 3 , 9 , 17 , 27 , 51 , 153 , 459 , 62869 , 188607 , 565821 , 1068773 , 1697463 , 3206319 , 9618957 , 28856871
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
-28856870
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 28856871 can be divided by 16 positive divisors.
The sum of these divisors (counting 28856871) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101110000101001000100111
3
Ternary
2000022002012000
4
Quaternary
1232011020213
5
Quinary
24341404441
6
Senary
2510300343
8
Octal
156051047
10
Decimal
28856871
12
Duodecimal
97b76b3
16
Hexadecimal
1b85227
20
Vigesimal
90723b
36
Base36
h6i3r
md5
76cbf8c6db4cd009791330e3410fcbfa
sha1
9adf9c205268e49d38fb04a51c21cdcb285728c0
sha256
1352b4b1e7402dec18b39d75de784ab7b0beb965be46600fccefef35a53295b0
sha512
fa6f5e0ff3adf92aefe2fc57145a6b57bddf798c2d5c149c7adbde395603ef394ee128fe05b87b27c7ebf462777104a44bb0ee190ab852de161b570d42c87056
ripemd-160
22da9aa3501b29b7f45d037695e15275c561da14
Diameter
57713742
Circumference
181313067.87838
Area
2.6160639051903E+15
Volume
1.0065522485311E+23
Surface area
1.0464255620761E+16
Circumference
181313067.87838
Perimeter
115427484
Area
832719003910641
Diagonal
40809778.335851
Surface area
4996314023463846
Volume
2.4029664875098E+22
Space diagonal
49981566.719461
Perimeter
86570613
Area
3.6057790580034E+14
Altitude
24990783.35973
Surface area
3.6057790580034E+14
Volume
2.8319231638036E+21
Height
13603259.445284