28990109 is an odd 8-digits composite number following 28990108
and preceding 28990110 . In scientific notation, it is written as 2.8990109 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 28976640 positive integers (up to 28990109) that are relatively prime to 28990109.
28990109 has 4 divisors, whose sum is 29003580
The reverse of 28990109 is 90109982
Previous prime number is 2689
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million nine hundred ninety thousand one hundred nine
Scientific notation
2.8990109 × 10^7
Engineering notation
2.8990109 × 10^6
Prime Factorization
2689 × 10781
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28990109
Product of the distinct prime numbers
The prime factorization of 28990109 is 2689 × 10781.
Since it has a total of 2 prime factors.
7 , 5 , 56 , 96 , 533 , 281 , 2445 , 4542 , 40574 , 75486 , 758611 , 418776 , 191529 , 3448158 , 22124591 , 97064274 , 422026665 , 902406579 , 4339488103 , 4208025554
n×2
57980218
n×3
86970327
n×4
115960436
n×5
144950545
n÷2
14495054.5
n÷3
9663369.6666667
n÷3
7247527.25
n÷5
5798021.8
n2
840426419831881
n3
2.4364053517406E+22
n4
7.0631656715143E+29
n5
2.0476194270226E+37
2 √n
5384.2463725205
3 √n
307.19674953271
4 √n
73.377424133861
5 √n
31.077778688043
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
-28990108
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 28990109 can be divided by 4 positive divisors.
The sum of these divisors (counting 28990109) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100101101010011101
3
Ternary
2000112211221202
4
Quaternary
1232211222131
5
Quinary
24410140414
6
Senary
2513205245
8
Octal
156455235
10
Decimal
28990109
12
Duodecimal
9860825
16
Hexadecimal
1ba5a9d
20
Vigesimal
913f59
36
Base36
h9cwt
md5
94f7700edbdd1df746262ebc2c790ee7
sha1
fd7cf0593b518651d12975204fac68b736b567f8
sha256
e6f2f8f93f078bc919ed3bc0cb7083e6d4d88e70637a451f7459feabebf5f99f
sha512
33ea8c4398b59a9881c828986fa698d623cb0b7b37ea86e0d601dc41a6064feb99d851ece6efe0b4a7ab14bf780c131685d7342601a9fc18886c24db143df29a
ripemd-160
a11589bc6ff203facded450de5d96a39d5a5d3c0
Diameter
57980218
Circumference
182150226.92233
Area
2.6402774664266E+15
Volume
1.020559087226E+23
Surface area
1.0561109865706E+16
Circumference
182150226.92233
Perimeter
115960436
Area
840426419831881
Diagonal
40998205.322474
Surface area
5042558518991286
Volume
2.4364053517406E+22
Space diagonal
50212341.70496
Perimeter
86970327
Area
3.6391531479301E+14
Altitude
25106170.85248
Surface area
3.6391531479301E+14
Volume
2.871331243225E+21
Height
13666068.440825