28871245 is an odd 8-digits composite number following 28871244
and preceding 28871246 . In scientific notation, it is written as 2.8871245 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 21320256 positive integers (up to 28871245) that are relatively prime to 28871245.
28871245 has 8 divisors, whose sum is 37310616
The reverse of 28871245 is 54217882
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million eight hundred seventy-one thousand two hundred forty-five
Scientific notation
2.8871245 × 10^7
Engineering notation
2.8871245 × 10^6
Prime Factorization
13 × 5 × 444173
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28871245
Product of the distinct prime numbers
The prime factorization of 28871245 is 13 × 5 × 444173.
Since it has a total of 3 prime factors.
10 , 4 , 61 , 56 , 895 , 597 , 4905 , 9591 , 28086 , 49854 , 550731 , 976232 , 2170275 , 7394035 , 88954017 , 61349786 , 455276209 , 929606161 , 742484007 , 4867470420
n×2
57742490
n×3
86613735
n×4
115484980
n×5
144356225
n÷2
14435622.5
n÷3
9623748.3333333
n÷3
7217811.25
n÷5
5774249
n2
833548787850025
n3
2.4065591273471E+22
n4
6.9480358172625E+29
n5
2.0059844434896E+37
2 √n
5373.1969068702
3 √n
306.77632276266
4 √n
73.302093468538
5 √n
31.052252033604
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
-28871244
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 28871245 can be divided by 8 positive divisors.
The sum of these divisors (counting 28871245) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110001000101001001101
3
Ternary
2000022210220101
4
Quaternary
1232020221031
5
Quinary
24342334440
6
Senary
2510451101
8
Octal
156105115
10
Decimal
28871245
12
Duodecimal
9803a91
16
Hexadecimal
1b88a4d
20
Vigesimal
908i25
36
Base36
h6t71
md5
4088cdd6a701d7f9d64c936a07921409
sha1
1de1aad140797319a0138bb28a52baef3a696356
sha256
ef18a709e50339ecc3bee32f316652d002dcc0e5a3f737d3b31056a2086f47f0
sha512
8a741388231690838ab326672fcb1c4d1b115196582cc1eac202174b4492d7259daced412ebd4eb81454df41c7a51729ee9c121d19846573259c51807a6ddf46
ripemd-160
df0d96f527787512389fac411dfe1cb32c038e85
Diameter
57742490
Circumference
181403382.38398
Area
2.6186707483183E+15
Volume
1.0080571299871E+23
Surface area
1.0474682993273E+16
Circumference
181403382.38398
Perimeter
115484980
Area
833548787850025
Diagonal
40830106.241596
Surface area
5001292727100150
Volume
2.4065591273471E+22
Space diagonal
50006463.217769
Perimeter
86613735
Area
3.6093721278592E+14
Altitude
25003231.608884
Surface area
3.6093721278592E+14
Volume
2.8361571304559E+21
Height
13610035.413865