28776989 is an odd 8-digits composite number following 28776988
and preceding 28776990 . In scientific notation, it is written as 2.8776989 × 10^7.
The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors.
There are 28758720 positive integers (up to 28776989) that are relatively prime to 28776989.
28776989 has 4 divisors, whose sum is 28795260
The reverse of 28776989 is 98967782
Previous prime number is 1741
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 56
Digital Root 2
Name
twenty-eight million seven hundred seventy-six thousand nine hundred eighty-nine
Scientific notation
2.8776989 × 10^7
Engineering notation
2.8776989 × 10^6
Prime Factorization
1741 × 16529
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28776989
Product of the distinct prime numbers
The prime factorization of 28776989 is 1741 × 16529.
Since it has a total of 2 prime factors.
8 , 5 , 16 , 63 , 340 , 442 , 5351 , 1788 , 9054 , 15578 , 302713 , 690619 , 7973964 , 3344541 , 1321814 , 80096669 , 802892862 , 289623850 , 8016889936 , 1097268800
n×2
57553978
n×3
86330967
n×4
115107956
n×5
143884945
n÷2
14388494.5
n÷3
9592329.6666667
n÷3
7194247.25
n÷5
5755397.8
n2
828115095906121
n3
2.3830659005624E+22
n4
6.857746120676E+29
n5
1.9734528467949E+37
2 √n
5364.4187942404
3 √n
306.4421144167
4 √n
73.242192718681
5 √n
31.031950237107
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
-28776988
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 28776989 can be divided by 4 positive divisors.
The sum of these divisors (counting 28776989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101110001101000011101
3
Ternary
2000011000121102
4
Quaternary
1231301220131
5
Quinary
24331330424
6
Senary
2504442445
8
Octal
155615035
10
Decimal
28776989
12
Duodecimal
9779425
16
Hexadecimal
1b71a1d
20
Vigesimal
8jh299
36
Base36
h4sgt
md5
394d84d363ab8e3ba62d460b2e806ef4
sha1
f3c5e6deb73e343bde78078d8d7375900fd03852
sha256
668f5a3a1707037ebafa8387f8fe6eebc1b189a44ce9525fb00dfe7547b2c01a
sha512
1f1f8009a862eccbab01ccaa1e0595ef30dc29ea72bcdc0a0df51b9f1fcad87ec4dc49a4a4cdbad1d42ba6aa4b293948a8451e82ff813aee1763e9a67b3c0b1f
ripemd-160
ae76525aa0b778cd9e077ccd87c9ce8cf04860d8
Diameter
57553978
Circumference
180811154.46967
Area
2.6016003016255E+15
Volume
9.9821631016364E+22
Surface area
1.0406401206502E+16
Circumference
180811154.46967
Perimeter
115107956
Area
828115095906121
Diagonal
40696808.128061
Surface area
4968690575436726
Volume
2.3830659005624E+22
Space diagonal
49843207.036851
Perimeter
86330967
Area
3.5858435515604E+14
Altitude
24921603.518425
Surface area
3.5858435515604E+14
Volume
2.8084700971702E+21
Height
13565602.709354