28857531 is an odd 8-digits composite number following 28857530
and preceding 28857532 . In scientific notation, it is written as 2.8857531 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 19238352 positive integers (up to 28857531) that are relatively prime to 28857531.
28857531 has 4 divisors, whose sum is 38476712
The reverse of 28857531 is 13575882
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million eight hundred fifty-seven thousand five hundred thirty-one
Scientific notation
2.8857531 × 10^7
Engineering notation
2.8857531 × 10^6
Prime Factorization
3 × 9619177
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28857531
Product of the distinct prime numbers
The prime factorization of 28857531 is 3 × 9619177.
Since it has a total of 2 prime factors.
3 , 6 , 99 , 87 , 198 , 455 , 3542 , 9016 , 87156 , 80179 , 724747 , 45396 , 2773039 , 528682 , 61529034 , 4368550 , 571779763 , 902227038 , 3122734775 , 1160436662
n×2
57715062
n×3
86572593
n×4
115430124
n×5
144287655
n÷2
14428765.5
n÷3
9619177
n÷3
7214382.75
n÷5
5771506.2
n2
832757095415961
n3
2.4031313696436E+22
n4
6.9348437996563E+29
n5
2.0012246992874E+37
2 √n
5371.9206062636
3 √n
306.72774159014
4 √n
73.293387193277
5 √n
31.049301474873
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
-28857530
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 28857531 can be divided by 4 positive divisors.
The sum of these divisors (counting 28857531) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110000101010010111011
3
Ternary
2000022010002110
4
Quaternary
1232011102323
5
Quinary
24341420111
6
Senary
2510303403
8
Octal
156052273
10
Decimal
28857531
12
Duodecimal
97b7b63
16
Hexadecimal
1b854bb
20
Vigesimal
9073gb
36
Base36
h6im3
md5
36c6877dfb8fef357945bca853fdab44
sha1
3a89f0daee0c5cad67621be75bb36c265f5c1929
sha256
49c4412d3ee8f65251698047dd05090e01428ee74b4debe0fdf2173a36660493
sha512
85e5f326fdd67d9fe15f9bb312166d8ac2c9c69f1987f28fe290014487a2185023ca97c9d145c36f0fa7f854c60c62c6ccc843734e65ea1f1300038cfb99dc99
ripemd-160
c479d948def8bb4e7718c8fe83e4f7d6ccaefd76
Diameter
57715062
Circumference
181317214.78068
Area
2.6161835731836E+15
Volume
1.0066213141978E+23
Surface area
1.0464734292734E+16
Circumference
181317214.78068
Perimeter
115430124
Area
832757095415961
Diagonal
40810711.716802
Surface area
4996542572495766
Volume
2.4031313696436E+22
Space diagonal
49982709.872994
Perimeter
86572593
Area
3.6059439990598E+14
Altitude
24991354.936497
Surface area
3.6059439990598E+14
Volume
2.8321174792618E+21
Height
13603570.572267