28990807 is an odd 8-digits composite number following 28990806
and preceding 28990808 . In scientific notation, it is written as 2.8990807 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 27991096 positive integers (up to 28990807) that are relatively prime to 28990807.
28990807 has 4 divisors, whose sum is 29990520
The reverse of 28990807 is 70809982
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million nine hundred ninety thousand eight hundred seven
Scientific notation
2.8990807 × 10^7
Engineering notation
2.8990807 × 10^6
Prime Factorization
29 × 999683
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28990807
Product of the distinct prime numbers
The prime factorization of 28990807 is 29 × 999683.
Since it has a total of 2 prime factors.
4 , 9 , 69 , 38 , 598 , 634 , 3119 , 2155 , 85531 , 46465 , 794051 , 883303 , 2776279 , 3022873 , 6946538 , 22698587 , 138037824 , 797404542 , 794650241 , 6772877948
n×2
57981614
n×3
86972421
n×4
115963228
n×5
144954035
n÷2
14495403.5
n÷3
9663602.3333333
n÷3
7247701.75
n÷5
5798161.4
n2
840466890511249
n3
2.4365813412702E+22
n4
7.0638459404565E+29
n5
2.0478659433751E+37
2 √n
5384.3111908581
3 √n
307.19921498981
4 √n
73.377865810189
5 √n
31.07792833964
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
-28990806
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 28990807 can be divided by 4 positive divisors.
The sum of these divisors (counting 28990807) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100101110101010111
3
Ternary
2000112212220121
4
Quaternary
1232211311113
5
Quinary
24410201212
6
Senary
2513212411
8
Octal
156456527
10
Decimal
28990807
12
Duodecimal
9861107
16
Hexadecimal
1ba5d57
20
Vigesimal
913h07
36
Base36
h9dg7
md5
18f0ee2cfd15b43d62836c2582685d3c
sha1
62d4f568183cd4b2ea3b79b7cd400abe35ed15a6
sha256
c79500d83cc13017fadc165951c05d0d8ffdbff4773a10e09865dbb627768b92
sha512
9088781061274b2b9bf99b54cfdb6b7fae59084bdfb08c03a70227054b483698b0b41d314c306144c4ed095c1ad80ceb21aa17ac676932568a8c7cdda60e7c8d
ripemd-160
c9cac29ed7cf97e85889e2fe7ff98214da349851
Diameter
57981614
Circumference
182154612.58568
Area
2.6404046088156E+15
Volume
1.0206328055478E+23
Surface area
1.0561618435262E+16
Circumference
182154612.58568
Perimeter
115963228
Area
840466890511249
Diagonal
40999192.443541
Surface area
5042801343067494
Volume
2.4365813412702E+22
Space diagonal
50213550.676423
Perimeter
86972421
Area
3.6393283911123E+14
Altitude
25106775.338212
Surface area
3.6393283911123E+14
Volume
2.8715386488746E+21
Height
13666397.48118