28676989 is an odd 8-digits composite number following 28676988
and preceding 28676990 . In scientific notation, it is written as 2.8676989 × 10^7.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 26069980 positive integers (up to 28676989) that are relatively prime to 28676989.
28676989 has 4 divisors, whose sum is 31284000
The reverse of 28676989 is 98967682
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
twenty-eight million six hundred seventy-six thousand nine hundred eighty-nine
Scientific notation
2.8676989 × 10^7
Engineering notation
2.8676989 × 10^6
Prime Factorization
11 × 2606999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28676989
Product of the distinct prime numbers
The prime factorization of 28676989 is 11 × 2606999.
Since it has a total of 2 prime factors.
9 , 6 , 91 , 85 , 216 , 973 , 8281 , 9211 , 17388 , 76129 , 201798 , 417209 , 1511272 , 2248679 , 89032212 , 96625594 , 637411281 , 14470616 , 9466075010 , 1470742815
n×2
57353978
n×3
86030967
n×4
114707956
n×5
143384945
n÷2
14338494.5
n÷3
9558996.3333333
n÷3
7169247.25
n÷5
5735397.8
n2
822369698106121
n3
2.3583086786523E+22
n4
6.7629192036315E+29
n5
1.9394015961043E+37
2 √n
5355.0900085806
3 √n
306.08674047161
4 √n
73.178480501993
5 √n
31.010352998573
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
-28676988
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 28676989 can be divided by 4 positive divisors.
The sum of these divisors (counting 28676989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011001001101111101
3
Ternary
1222221221102201
4
Quaternary
1231121031331
5
Quinary
24320130424
6
Senary
2502351501
8
Octal
155311575
10
Decimal
28676989
12
Duodecimal
972b591
16
Hexadecimal
1b5937d
20
Vigesimal
8j4c99
36
Base36
h2nb1
md5
beab5da4930fe2c024ad34855837a996
sha1
8615582cf1cc17359070c972ac62871846e47938
sha256
a7dfb236936b317b1ee14698f1c803a1b6809e85e3c6632c10620233c4e05b25
sha512
27fe947699d483f484e2e4d949625b8e583f407470d0d8512ab6d7260adaf3634f888ae3dd71cfb0ea537531820dd1a82fd7f5a7fe97580c79ca7fa7f01d18cf
ripemd-160
d17e970926a8a30caf9dff73f09a00562090b623
Diameter
57353978
Circumference
180182835.93895
Area
2.583550602105E+15
Volume
9.8784602930013E+22
Surface area
1.033420240842E+16
Circumference
180182835.93895
Perimeter
114707956
Area
822369698106121
Diagonal
40555386.771824
Surface area
4934218188636726
Volume
2.3583086786523E+22
Space diagonal
49670001.956094
Perimeter
86030967
Area
3.5609652493122E+14
Altitude
24835000.978047
Surface area
3.5609652493122E+14
Volume
2.7792934313435E+21
Height
13518462.257275