28181507 is an odd 8-digits composite number following 28181506
and preceding 28181508 . In scientific notation, it is written as 2.8181507 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 27890880 positive integers (up to 28181507) that are relatively prime to 28181507.
28181507 has 4 divisors, whose sum is 28472136
The reverse of 28181507 is 70518182
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million one hundred eighty-one thousand five hundred seven
Scientific notation
2.8181507 × 10^7
Engineering notation
2.8181507 × 10^6
Prime Factorization
97 × 290531
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28181507
Product of the distinct prime numbers
The prime factorization of 28181507 is 97 × 290531.
Since it has a total of 2 prime factors.
5 , 9 , 73 , 82 , 499 , 612 , 5739 , 2362 , 46174 , 78106 , 717395 , 365888 , 690807 , 7644164 , 61057027 , 63704279 , 177732210 , 946517637 , 1896084532 , 6189509107
n×2
56363014
n×3
84544521
n×4
112726028
n×5
140907535
n÷2
14090753.5
n÷3
9393835.6666667
n÷3
7045376.75
n÷5
5636301.4
n2
794197336791049
n3
2.2381677806158E+22
n4
6.3074940976599E+29
n5
1.7775468906566E+37
2 √n
5308.6257166992
3 √n
304.31362989614
4 √n
72.860316474053
5 √n
30.902445035314
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
-28181506
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 28181507 can be divided by 4 positive divisors.
The sum of these divisors (counting 28181507) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011100000010000000011
3
Ternary
1222000202202112
4
Quaternary
1223200100003
5
Quinary
24203302012
6
Senary
2444005535
8
Octal
153402003
10
Decimal
28181507
12
Duodecimal
95308ab
16
Hexadecimal
1ae0403
20
Vigesimal
8g2df7
36
Base36
gs0zn
md5
66087c0227dc91ef797cc58d2d8670fa
sha1
f11f04eb4c77198cbcc22d5166223f5383a7971e
sha256
0a4fd3efdbb0fde485d8e4067ed605afe351ff7ff3ef18a0fed62ec64e64f376
sha512
111b7f3f077afc2e4da1ff9f172eec4e16d74e1f32014c036961971f6fd73be6b789210e85788b1aa430b3e7daf15aa5dce1d1bb2784f6e55cb6b4641cd67c3b
ripemd-160
55813c6f86a6030549d7d91810fe8ec7aff37b8e
Diameter
56363014
Circumference
177069630.71658
Area
2.4950445187633E+15
Volume
9.3752152761121E+22
Surface area
9.9801780750534E+15
Circumference
177069630.71658
Perimeter
112726028
Area
794197336791049
Diagonal
39854669.407512
Surface area
4765184020746294
Volume
2.2381677806158E+22
Space diagonal
48811801.957858
Perimeter
84544521
Area
3.438975346395E+14
Altitude
24405900.978929
Surface area
3.438975346395E+14
Volume
2.6377060251778E+21
Height
13284889.802504