28946987 is an odd 8-digits composite number following 28946986
and preceding 28946988 . In scientific notation, it is written as 2.8946987 × 10^7.
The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors.
There are 28080000 positive integers (up to 28946987) that are relatively prime to 28946987.
28946987 has 8 divisors, whose sum is 29818752
The reverse of 28946987 is 78964982
Previous prime number is 401
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
twenty-eight million nine hundred forty-six thousand nine hundred eighty-seven
Scientific notation
2.8946987 × 10^7
Engineering notation
2.8946987 × 10^6
Prime Factorization
37 × 401 × 1951
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28946987
Product of the distinct prime numbers
The prime factorization of 28946987 is 37 × 401 × 1951.
Since it has a total of 3 prime factors.
4 , 7 , 71 , 6 , 382 , 113 , 2804 , 2628 , 5448 , 26237 , 898006 , 228280 , 4517552 , 9065010 , 39646111 , 28222871 , 160666236 , 758206703 , 7387211111 , 3704492998
n×2
57893974
n×3
86840961
n×4
115787948
n×5
144734935
n÷2
14473493.5
n÷3
9648995.6666667
n÷3
7236746.75
n÷5
5789397.4
n2
837928056378169
n3
2.4255492554914E+22
n4
7.021234276657E+29
n5
2.0324357733034E+37
2 √n
5380.2404221373
3 √n
307.04435834048
4 √n
73.350122168523
5 √n
31.068527711778
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28946986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28946987 can be divided by 8 positive divisors.
The sum of these divisors (counting 28946987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110011011001000101011
3
Ternary
2000110122210122
4
Quaternary
1232123020223
5
Quinary
24402300422
6
Senary
2512233455
8
Octal
156331053
10
Decimal
28946987
12
Duodecimal
983b88b
16
Hexadecimal
1b9b22b
20
Vigesimal
90i797
36
Base36
h8fmz
md5
de62c478b9c7a1bc2c4da33f3b64c581
sha1
028a628571387ed2d19dc30399fe428ba8d6540e
sha256
43ccc043ec1d768f1e90b220009c759826c82e1d2dfdc878bd5fe89605e696d1
sha512
f8d90462fbeef6b0e99a32b2ca87aafff234bf1d858729a19a56ada169d6811c27bfedc1eb8f318d79d996a9c2843e7face08261df8d26d1f21eda1bdbac83d8
ripemd-160
524449d47bb0344c54cc9a55dde62b1c2450846d
Diameter
57893974
Circumference
181879283.40552
Area
2.6324286261544E+15
Volume
1.0160116962629E+23
Surface area
1.0529714504618E+16
Circumference
181879283.40552
Perimeter
115787948
Area
837928056378169
Diagonal
40937221.605238
Surface area
5027568338269014
Volume
2.4255492554914E+22
Space diagonal
50137652.210036
Perimeter
86840961
Area
3.6283349168361E+14
Altitude
25068826.105018
Surface area
3.6283349168361E+14
Volume
2.8585372110999E+21
Height
13645740.535079