28948891 is an odd 8-digits composite number following 28948890
and preceding 28948892 . In scientific notation, it is written as 2.8948891 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 28516752 positive integers (up to 28948891) that are relatively prime to 28948891.
28948891 has 4 divisors, whose sum is 29381032
The reverse of 28948891 is 19884982
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million nine hundred forty-eight thousand eight hundred ninety-one
Scientific notation
2.8948891 × 10^7
Engineering notation
2.8948891 × 10^6
Prime Factorization
67 × 432073
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28948891
Product of the distinct prime numbers
The prime factorization of 28948891 is 67 × 432073.
Since it has a total of 2 prime factors.
5 , 5 , 74 , 78 , 525 , 658 , 926 , 8913 , 57956 , 58503 , 691502 , 958083 , 42721 , 7802629 , 92332880 , 59774392 , 313556819 , 156567656 , 5736756555 , 1644601442
n×2
57897782
n×3
86846673
n×4
115795564
n×5
144744455
n÷2
14474445.5
n÷3
9649630.3333333
n÷3
7237222.75
n÷5
5789778.2
n2
838038290129881
n3
2.4260279114796E+22
n4
7.0230817572381E+29
n5
2.0331042827438E+37
2 √n
5380.4173629933
3 √n
307.05109018262
4 √n
73.351328297403
5 √n
31.068936410069
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28948890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28948891 can be divided by 4 positive divisors.
The sum of these divisors (counting 28948891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110011011100110011011
3
Ternary
2000110202102011
4
Quaternary
1232123212123
5
Quinary
24402331031
6
Senary
2512250351
8
Octal
156334633
10
Decimal
28948891
12
Duodecimal
98409b7
16
Hexadecimal
1b9b99b
20
Vigesimal
90ic4b
36
Base36
h8h3v
md5
b57387232ec1f48e080383c8a7529ef1
sha1
c2ecdd10525a246ff6d16d45685fb6e0ab9f572e
sha256
56e3744fd9a738ddea256f8fbddb593025f8960f5eeeeca469969123d77d1c9d
sha512
b9b96e072761fafc855e3922873367814f66e8efacdf0e2ecc60cf89f5f5ac64f41a3b751b61b1f84fb45dc1cf793cd3542ae77d07ea9fd85819a617e4ec82ed
ripemd-160
acb81eae8e05d2b069fd6be43aa7ea62cf6e3782
Diameter
57897782
Circumference
181891246.59034
Area
2.632774935699E+15
Volume
1.0162121952144E+23
Surface area
1.0531099742796E+16
Circumference
181891246.59034
Perimeter
115795564
Area
838038290129881
Diagonal
40939914.26786
Surface area
5028229740779286
Volume
2.4260279114796E+22
Space diagonal
50140950.034773
Perimeter
86846673
Area
3.6288122429828E+14
Altitude
25070475.017387
Surface area
3.6288122429828E+14
Volume
2.8591013125918E+21
Height
13646638.089287