28918087 is an odd 8-digits composite number following 28918086
and preceding 28918088 . In scientific notation, it is written as 2.8918087 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 25452000 positive integers (up to 28918087) that are relatively prime to 28918087.
28918087 has 8 divisors, whose sum is 31606272
The reverse of 28918087 is 78081982
Previous prime number is 4331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million nine hundred eighteen thousand eighty-seven
Scientific notation
2.8918087 × 10^7
Engineering notation
2.8918087 × 10^6
Prime Factorization
11 × 4331 × 607
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28918087
Product of the distinct prime numbers
The prime factorization of 28918087 is 11 × 4331 × 607.
Since it has a total of 3 prime factors.
8 , 6 , 77 , 87 , 749 , 600 , 7776 , 8073 , 96170 , 66909 , 210959 , 389982 , 8763964 , 7341259 , 50826443 , 15660190 , 688281971 , 440085974 , 5288685185 , 8308427394
n×2
57836174
n×3
86754261
n×4
115672348
n×5
144590435
n÷2
14459043.5
n÷3
9639362.3333333
n÷3
7229521.75
n÷5
5783617.4
n2
836255755739569
n3
2.4182916698728E+22
n4
6.9932368900756E+29
n5
2.0223103279881E+37
2 √n
5377.5539978693
3 √n
306.94214232914
4 √n
73.331807545357
5 √n
31.062321613472
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28918086
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28918087 can be divided by 8 positive divisors.
The sum of these divisors (counting 28918087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110010100000101000111
3
Ternary
2000102012011021
4
Quaternary
1232110011013
5
Quinary
24400334322
6
Senary
2511452011
8
Octal
156240507
10
Decimal
28918087
12
Duodecimal
9827007
16
Hexadecimal
1b94147
20
Vigesimal
90ef47
36
Base36
h7tc7
md5
c77046edd3fb6fe4d03282ae12526727
sha1
4d5d5f18fa4cebaa29d1f2f93a47c74906b48514
sha256
7e3ce49dd8b3a6729651f15a9a151183ffba8b6dc47aa6fd9e8f3ab10cd1c420
sha512
84d1a92245b39e660e9b9d47c31eff82a5165607b6ea5e0a8618aac929f6d8aabc36cba13ea4209a292cc9e7856b0226282e8dabacfab825d7af435c6a7bf5e8
ripemd-160
c4d0547b4921bd7fe34b4c8e1e0de4af45b96b46
Diameter
57836174
Circumference
181697699.35014
Area
2.6271749387536E+15
Volume
1.012971645908E+23
Surface area
1.0508699755014E+16
Circumference
181697699.35014
Perimeter
115672348
Area
836255755739569
Diagonal
40896350.833285
Surface area
5017534534437414
Volume
2.4182916698728E+22
Space diagonal
50087595.941697
Perimeter
86754261
Area
3.6210936426571E+14
Altitude
25043797.970849
Surface area
3.6210936426571E+14
Volume
2.8499840644233E+21
Height
13632116.944428