28676987 is an odd 8-digits composite number following 28676986
and preceding 28676988 . In scientific notation, it is written as 2.8676987 × 10^7.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 28484376 positive integers (up to 28676987) that are relatively prime to 28676987.
28676987 has 4 divisors, whose sum is 28869600
The reverse of 28676987 is 78967682
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
twenty-eight million six hundred seventy-six thousand nine hundred eighty-seven
Scientific notation
2.8676987 × 10^7
Engineering notation
2.8676987 × 10^6
Prime Factorization
149 × 192463
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28676987
Product of the distinct prime numbers
The prime factorization of 28676987 is 149 × 192463.
Since it has a total of 2 prime factors.
2 , 9 , 85 , 91 , 76 , 544 , 6919 , 5085 , 43018 , 44844 , 77016 , 182214 , 7871549 , 3517575 , 70584869 , 50312400 , 878210291 , 241685271 , 9450307241 , 9459341039
n×2
57353974
n×3
86030961
n×4
114707948
n×5
143384935
n÷2
14338493.5
n÷3
9558995.6666667
n÷3
7169246.75
n÷5
5735397.4
n2
822369583398169
n3
2.3583081852305E+22
n4
6.7629173169848E+29
n5
1.9394009198125E+37
2 √n
5355.0898218424
3 √n
306.08673335587
4 √n
73.178479226084
5 √n
31.010352566026
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
-28676986
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 28676987 can be divided by 4 positive divisors.
The sum of these divisors (counting 28676987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011001001101111011
3
Ternary
1222221221102122
4
Quaternary
1231121031323
5
Quinary
24320130422
6
Senary
2502351455
8
Octal
155311573
10
Decimal
28676987
12
Duodecimal
972b58b
16
Hexadecimal
1b5937b
20
Vigesimal
8j4c97
36
Base36
h2naz
md5
3b5fbed70269b2c404500b4b63092223
sha1
010de7ef7033779301e5db7668d9942d126fb407
sha256
851be727c5af6c9baa0bcf83944cf82c502c647a512bf30931a29957a2f568e2
sha512
93f8bf21d1304fac7449c296fe703c28e5662678acf348ddcf9eaf72f36c8836d5007dfd182ae21c7f097777ac37591394e0faf1a6dc9ea9de76abcb86143b1b
ripemd-160
20e9c12900d0f2e20afd904b03399e865799e2fb
Diameter
57353974
Circumference
180182823.37258
Area
2.5835502417394E+15
Volume
9.878458226161E+22
Surface area
1.0334200966958E+16
Circumference
180182823.37258
Perimeter
114707948
Area
822369583398169
Diagonal
40555383.943397
Surface area
4934217500389014
Volume
2.3583081852305E+22
Space diagonal
49669998.491992
Perimeter
86030961
Area
3.5609647526122E+14
Altitude
24834999.245996
Surface area
3.5609647526122E+14
Volume
2.7792928498403E+21
Height
13518461.314466