28131457 is an odd 8-digits composite number following 28131456
and preceding 28131458 . In scientific notation, it is written as 2.8131457 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 26593920 positive integers (up to 28131457) that are relatively prime to 28131457.
28131457 has 8 divisors, whose sum is 29675360
The reverse of 28131457 is 75413182
Previous prime number is 571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million one hundred thirty-one thousand four hundred fifty-seven
Scientific notation
2.8131457 × 10^7
Engineering notation
2.8131457 × 10^6
Prime Factorization
19 × 571 × 2593
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28131457
Product of the distinct prime numbers
The prime factorization of 28131457 is 19 × 571 × 2593.
Since it has a total of 3 prime factors.
1 , 1 , 27 , 85 , 432 , 18 , 271 , 9202 , 39580 , 56192 , 737826 , 634708 , 1849011 , 6209399 , 56254457 , 2410868 , 75959156 , 675149430 , 1817024187 , 5804280898
n×2
56262914
n×3
84394371
n×4
112525828
n×5
140657285
n÷2
14065728.5
n÷3
9377152.3333333
n÷3
7032864.25
n÷5
5626291.4
n2
791378872942849
n3
2.22626407349E+22
n4
6.2628052054029E+29
n5
1.7618183533517E+37
2 √n
5303.9095957605
3 √n
304.1333707554
4 √n
72.82794515679
5 √n
30.891460759058
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
-28131456
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 28131457 can be divided by 8 positive divisors.
The sum of these divisors (counting 28131457) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011010100000010000001
3
Ternary
1221221020002211
4
Quaternary
1223110002001
5
Quinary
24200201312
6
Senary
2442542121
8
Octal
153240201
10
Decimal
28131457
12
Duodecimal
9507941
16
Hexadecimal
1ad4081
20
Vigesimal
8fg8ch
36
Base36
gqydd
md5
3bcdd77333dc6fa32fce11c2b04ad4fb
sha1
1c535d9518b1061fad10ad527ec69db44a88a087
sha256
904f65f23b2abe88b78565a57fe14ecbb905d6d52046c57aa7dcdf72247b5a6d
sha512
61eee13856d524958abd89cb0a724d67004a5b9e26eeeae9174cc76758c5d6e308dcde9f2f58410b42acdf60ede2865f8b00eb6946cfd8e0321343db1795bceb
ripemd-160
1f225f3ed3a7d8dcaa0cff15329779c40bb41d47
Diameter
56262914
Circumference
176755157.29195
Area
2.4861900534434E+15
Volume
9.3253531443029E+22
Surface area
9.9447602137737E+15
Circumference
176755157.29195
Perimeter
112525828
Area
791378872942849
Diagonal
39783888.018716
Surface area
4748273237657094
Volume
2.22626407349E+22
Space diagonal
48725112.814939
Perimeter
84394371
Area
3.426771039934E+14
Altitude
24362556.40747
Surface area
3.426771039934E+14
Volume
2.6236773717946E+21
Height
13261296.006239