28432891 is an odd 8-digits composite number following 28432890
and preceding 28432892 . In scientific notation, it is written as 2.8432891 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 26760352 positive integers (up to 28432891) that are relatively prime to 28432891.
28432891 has 4 divisors, whose sum is 30105432
The reverse of 28432891 is 19823482
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million four hundred thirty-two thousand eight hundred ninety-one
Scientific notation
2.8432891 × 10^7
Engineering notation
2.8432891 × 10^6
Prime Factorization
17 × 1672523
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28432891
Product of the distinct prime numbers
The prime factorization of 28432891 is 17 × 1672523.
Since it has a total of 2 prime factors.
5 , 9 , 89 , 37 , 47 , 360 , 9442 , 7376 , 26484 , 50691 , 753639 , 399764 , 4697789 , 8773835 , 27217107 , 7780749 , 72256002 , 993578574 , 7327695109 , 8828313988
n×2
56865782
n×3
85298673
n×4
113731564
n×5
142164455
n÷2
14216445.5
n÷3
9477630.3333333
n÷3
7108222.75
n÷5
5686578.2
n2
808429290617881
n3
2.2985981901346E+22
n4
6.5355791792893E+29
n5
1.858254104266E+37
2 √n
5332.2500879085
3 √n
305.21579639936
4 √n
73.022257482965
5 √n
30.957380419328
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
-28432890
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 28432891 can be divided by 4 positive divisors.
The sum of these divisors (counting 28432891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100011101100111111011
3
Ternary
1222111112121001
4
Quaternary
1230131213323
5
Quinary
24234323031
6
Senary
2453225431
8
Octal
154354773
10
Decimal
28432891
12
Duodecimal
9632277
16
Hexadecimal
1b1d9fb
20
Vigesimal
8he24b
36
Base36
gxeyj
md5
7e5e930d6dc6af1bf04e15857f951b77
sha1
e7907518d13112dac622c4bec985925f630c1fcd
sha256
50157d8135a3a3530d5548df08947c331f8603098bf1c0c8a177e88d4e2c268d
sha512
7b290fa2ea2934996432ad7a537acfd80ddc7c58f0d0a36c3b8eb6d2b3662b254c5c09b620a1fc9e879b727092ccd8ad075d566cb0c672ee7847031bb5e0b5f1
ripemd-160
dcbb7a53817108d256f515756642c04d0bde2a23
Diameter
56865782
Circumference
178649122.97184
Area
2.5397555203519E+15
Volume
9.6283455835753E+22
Surface area
1.0159022081408E+16
Circumference
178649122.97184
Perimeter
113731564
Area
808429290617881
Diagonal
40210180.069676
Surface area
4850575743707286
Volume
2.2985981901346E+22
Space diagonal
49247211.818068
Perimeter
85298673
Area
3.5006015141926E+14
Altitude
24623605.909034
Surface area
3.5006015141926E+14
Volume
2.7089239457788E+21
Height
13403393.356559