28509871 is an odd 8-digits composite number following 28509870
and preceding 28509872 . In scientific notation, it is written as 2.8509871 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 24853248 positive integers (up to 28509871) that are relatively prime to 28509871.
28509871 has 16 divisors, whose sum is 32457600
The reverse of 28509871 is 17890582
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million five hundred nine thousand eight hundred seventy-one
Scientific notation
2.8509871 × 10^7
Engineering notation
2.8509871 × 10^6
Prime Factorization
29 × 13 × 47 × 1609
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28509871
Product of the distinct prime numbers
The prime factorization of 28509871 is 29 × 13 × 47 × 1609.
Since it has a total of 4 prime factors.
10 , 6 , 48 , 83 , 929 , 993 , 5448 , 2076 , 46007 , 40218 , 196880 , 433834 , 2964579 , 7321284 , 85339348 , 25732991 , 745623154 , 546877336 , 8979506997 , 3193373301
n×2
57019742
n×3
85529613
n×4
114039484
n×5
142549355
n÷2
14254935.5
n÷3
9503290.3333333
n÷3
7127467.75
n÷5
5701974.2
n2
812812744436641
n3
2.3173186491045E+22
n4
6.6066455751862E+29
n5
1.8835461309128E+37
2 √n
5339.4635498334
3 √n
305.49099809809
4 √n
73.071633003741
5 √n
30.97412526952
1 , 13 , 29 , 47 , 377 , 611 , 1363 , 1609 , 17719 , 20917 , 46661 , 75623 , 606593 , 983099 , 2193067 , 28509871
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
-28509870
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 28509871 can be divided by 16 positive divisors.
The sum of these divisors (counting 28509871) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101100110000011010101111
3
Ternary
1222122110012011
4
Quaternary
1230300122233
5
Quinary
24244303441
6
Senary
2455022051
8
Octal
154603257
10
Decimal
28509871
12
Duodecimal
966a927
16
Hexadecimal
1b306af
20
Vigesimal
8i3edb
36
Base36
gz2cv
md5
ddb1444c32f5f351687b21b995232b57
sha1
df354d9c7fbc4debf354154b982d6cb28cd15197
sha256
4c7829020787a6f8bcb3af706fb796f9aca1e4b79363005751723378f397bf39
sha512
8187970245ee25091bc00811a94d6c758559520cbbc23a2ea29e0363f29fcce6be9e0e5d019f3457aada50ea40a80741e85a19f6a05bbe8c63aea02dbc5cbd6d
ripemd-160
97c5fcf6b8d31b553eb02b9391e5db9746313fcc
Diameter
57019742
Circumference
179132802.57679
Area
2.5535265466663E+15
Volume
9.7067616587376E+22
Surface area
1.0214106186665E+16
Circumference
179132802.57679
Perimeter
114039484
Area
812812744436641
Diagonal
40319046.229707
Surface area
4876876466619846
Volume
2.3173186491045E+22
Space diagonal
49380545.089235
Perimeter
85529613
Area
3.5195824260094E+14
Altitude
24690272.544617
Surface area
3.5195824260094E+14
Volume
2.730986218253E+21
Height
13439682.076569