28996891 is an odd 8-digits composite number following 28996890
and preceding 28996892 . In scientific notation, it is written as 2.8996891 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 22594920 positive integers (up to 28996891) that are relatively prime to 28996891.
28996891 has 4 divisors, whose sum is 29373552
The reverse of 28996891 is 19869982
Previous prime number is 77
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
twenty-eight million nine hundred ninety-six thousand eight hundred ninety-one
Scientific notation
2.8996891 × 10^7
Engineering notation
2.8996891 × 10^6
Prime Factorization
77 × 376583
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28996891
Product of the distinct prime numbers
The prime factorization of 28996891 is 77 × 376583.
Since it has a total of 2 prime factors.
4 , 9 , 43 , 24 , 834 , 886 , 8466 , 7620 , 84436 , 93688 , 91508 , 395392 , 3730138 , 7767670 , 15844193 , 98095032 , 731853016 , 54043790 , 8066773694 , 596546396
n×2
57993782
n×3
86990673
n×4
115987564
n×5
144984455
n÷2
14498445.5
n÷3
9665630.3333333
n÷3
7249222.75
n÷5
5799378.2
n2
840819687665881
n3
2.4381156833902E+22
n4
7.0697774716655E+29
n5
2.0500156674014E+37
2 √n
5384.8761359942
3 √n
307.22070305781
4 √n
73.381715270183
5 √n
31.07923263066
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
-28996890
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 28996891 can be divided by 4 positive divisors.
The sum of these divisors (counting 28996891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100111010100011011
3
Ternary
2000120012020221
4
Quaternary
1232213110123
5
Quinary
24410400031
6
Senary
2513300511
8
Octal
156472433
10
Decimal
28996891
12
Duodecimal
9864737
16
Hexadecimal
1ba751b
20
Vigesimal
914c4b
36
Base36
h9i57
md5
3f5074e38f8a3e851b5591ea061d1650
sha1
143664449d3677fb3af3571c39729a4b8ce121e6
sha256
7fe17c3f203e163d32033cd2aae4423379a988047efd2eb0d9ca5c438f905740
sha512
da607c79a9d1ae73cda9064f7ad1529203a7d163c027bd7f9c614513578a1fd1cd2654d8accc2c25ff5b401df4cd522ccd3eb43698a5fa2428444e164dee7d30
ripemd-160
24d7df661f189bd7a812637fb2831bc8dc8ed5c7
Diameter
57993782
Circumference
182192839.48509
Area
2.6415129537648E+15
Volume
1.0212755092721E+23
Surface area
1.0566051815059E+16
Circumference
182192839.48509
Perimeter
115987564
Area
840819687665881
Diagonal
41007796.518854
Surface area
5044918125995286
Volume
2.4381156833902E+22
Space diagonal
50224088.473537
Perimeter
86990673
Area
3.6408560476038E+14
Altitude
25112044.236768
Surface area
3.6408560476038E+14
Volume
2.8733468884041E+21
Height
13669265.506285