28987112 is an even 8-digits composite number following 28987111
and preceding 28987113 . In scientific notation, it is written as 2.8987112 × 10^7.
The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors.
There are 11293440 positive integers (up to 28987112) that are relatively prime to 28987112.
28987112 has 16 divisors, whose sum is 55057860
The reverse of 28987112 is 21178982
Previous prime number is 77
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million nine hundred eighty-seven thousand one hundred twelve
Scientific notation
2.8987112 × 10^7
Engineering notation
2.8987112 × 10^6
Prime Factorization
2 × 2 × 2 × 77 × 47057
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
7246778
Product of the distinct prime numbers
The prime factorization of 28987112 is 2 × 2 × 2 × 77 × 47057.
Since it has a total of 5 prime factors.
10 , 7 , 34 , 18 , 480 , 49 , 2053 , 8181 , 65922 , 17578 , 694229 , 505103 , 4504499 , 128124 , 31400011 , 73137704 , 918106632 , 800174681 , 9626206733 , 7179244743
n×2
57974224
n×3
86961336
n×4
115948448
n×5
144935560
n÷2
14493556
n÷3
9662370.6666667
n÷3
7246778
n÷5
5797422.4
n2
840252662100544
n3
2.4356498024607E+22
n4
7.0602453616705E+29
n5
2.0465612304622E+37
2 √n
5383.968053397
3 √n
307.18616315896
4 √n
73.375527619207
5 √n
31.077136096775
1 , 2 , 4 , 8 , 77 , 154 , 308 , 616 , 47057 , 94114 , 188228 , 376456 , 3623389 , 7246778 , 14493556 , 28987112
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28987111
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28987112 can be divided by 16 positive divisors.
The sum of these divisors (counting 28987112) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101110100100111011101000
3
Ternary
2000112200211202
4
Quaternary
1232210323220
5
Quinary
24410041422
6
Senary
2513143332
8
Octal
156447350
10
Decimal
28987112
12
Duodecimal
985ab48
16
Hexadecimal
1ba4ee8
20
Vigesimal
9137fc
36
Base36
h9alk
md5
312a0092d4b838bb4bc51eb48cc6266b
sha1
037a20d690bc5cc3ca10b6c5ac384867be232b6c
sha256
96ae42e4edfed578c04d531dd68fe57cd3911c490d7bc2633bd8c2cd93c3edee
sha512
978c2a1572082107d6c1f766eb7d79b5a48be803e85604a8f29fb5e25f8a4b64faff121e57ef829ba72763d2498c3b0fee77661bdee7559c43d958bcf7712b81
ripemd-160
95a07a1e5709bbce0fb991c7eb4996d972462ae1
Diameter
57974224
Circumference
182131396.21597
Area
2.6397315904143E+15
Volume
1.0202426034837E+23
Surface area
1.0558926361657E+16
Circumference
182131396.21597
Perimeter
115948448
Area
840252662100544
Diagonal
40993966.924428
Surface area
5041515972603264
Volume
2.4356498024607E+22
Space diagonal
50207150.748689
Perimeter
86961336
Area
3.6384007548829E+14
Altitude
25103575.374345
Surface area
3.6384007548829E+14
Volume
2.8704408198593E+21
Height
13664655.641476