28409815 is an odd 8-digits composite number following 28409814
and preceding 28409816 . In scientific notation, it is written as 2.8409815 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 19480992 positive integers (up to 28409815) that are relatively prime to 28409815.
28409815 has 8 divisors, whose sum is 38962080
The reverse of 28409815 is 51890482
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million four hundred nine thousand eight hundred fifteen
Scientific notation
2.8409815 × 10^7
Engineering notation
2.8409815 × 10^6
Prime Factorization
5 × 7 × 811709
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28409815
Product of the distinct prime numbers
The prime factorization of 28409815 is 5 × 7 × 811709.
Since it has a total of 3 prime factors.
3 , 4 , 83 , 39 , 22 , 491 , 8893 , 4800 , 68340 , 13883 , 700166 , 876447 , 9102273 , 75200 , 30591596 , 70966169 , 315838840 , 816293167 , 4433128561 , 3586897983
n×2
56819630
n×3
85229445
n×4
113639260
n×5
142049075
n÷2
14204907.5
n÷3
9469938.3333333
n÷3
7102453.75
n÷5
5681963
n2
807117588334225
n3
2.2930061367821E+22
n4
6.5143880139846E+29
n5
1.8507255831552E+37
2 √n
5330.0858342057
3 √n
305.13320348522
4 √n
73.007436841774
5 √n
30.952353814498
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
-28409814
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 28409815 can be divided by 8 positive divisors.
The sum of these divisors (counting 28409815) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100010111111111010111
3
Ternary
1222110100221101
4
Quaternary
1230113333113
5
Quinary
24233103230
6
Senary
2452530531
8
Octal
154277727
10
Decimal
28409815
12
Duodecimal
9620a47
16
Hexadecimal
1b17fd7
20
Vigesimal
8hb4af
36
Base36
gwx5j
md5
cf0a91f5c2bd840db3f03ad3095c8ff3
sha1
33be850080376e044421b9fcfb3fd9076801c456
sha256
8a9f44389673825dafb4fcdc4f31c7b783cbc1da3ef042e666bad6e25c6980ba
sha512
dfc2a64816d1958ba924f27ce529e8733264d29f278fde8754e0b47071bd625e18bc3c1c1998e579fccaee1153743e3ca60c75869155e81e8b09cdd949a1db0c
ripemd-160
d2fd06a00fd84ec7ae464eb4dbfdee677cf14f65
Diameter
56819630
Circumference
178504132.18769
Area
2.5356346860939E+15
Volume
9.6049216452681E+22
Surface area
1.0142538744376E+16
Circumference
178504132.18769
Perimeter
113639260
Area
807117588334225
Diagonal
40177545.677511
Surface area
4842705530005350
Volume
2.2930061367821E+22
Space diagonal
49207243.013632
Perimeter
85229445
Area
3.4949216766933E+14
Altitude
24603621.506816
Surface area
3.4949216766933E+14
Volume
2.7023336477017E+21
Height
13392515.225837