28993894 is an even 8-digits composite number following 28993893
and preceding 28993895 . In scientific notation, it is written as 2.8993894 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 14496946 positive integers (up to 28993894) that are relatively prime to 28993894.
28993894 has 4 divisors, whose sum is 43490844
The reverse of 28993894 is 49839982
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 52
Digital Root 7
Name
twenty-eight million nine hundred ninety-three thousand eight hundred ninety-four
Scientific notation
2.8993894 × 10^7
Engineering notation
2.8993894 × 10^6
Prime Factorization
2 × 14496947
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28993894
Product of the distinct prime numbers
The prime factorization of 28993894 is 2 × 14496947.
Since it has a total of 2 prime factors.
2 , 2 , 6 , 5 , 309 , 551 , 9725 , 1362 , 37864 , 13125 , 93704 , 106422 , 3292525 , 2198941 , 85335338 , 74354348 , 835291889 , 464847538 , 1225017350 , 9104070148
n×2
57987788
n×3
86981682
n×4
115975576
n×5
144969470
n÷2
14496947
n÷3
9664631.3333333
n÷3
7248473.5
n÷5
5798778.8
n2
840645889283236
n3
2.4373597805414E+22
n4
7.066855111688E+29
n5
2.0489564802164E+37
2 √n
5384.597849422
3 √n
307.21011833489
4 √n
73.379819088234
5 √n
31.078590159636
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
-28993893
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 28993894 can be divided by 4 positive divisors.
The sum of these divisors (counting 28993894) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100110100101100110
3
Ternary
2000120001010221
4
Quaternary
1232212211212
5
Quinary
24410301034
6
Senary
2513234554
8
Octal
156464546
10
Decimal
28993894
12
Duodecimal
9862a5a
16
Hexadecimal
1ba6966
20
Vigesimal
9144ee
36
Base36
h9fty
md5
743182581f40cd7967dffddb8a6987b4
sha1
2636fbfce8321cbc3c358f31e58f299e0054a66e
sha256
443f2183a33c8bd08ea84f96f78bcfb7816fcfa6f537b8ee1a8a99d0d6cefe13
sha512
817042624406019d5e6ca85bbee8bb6c83e5c430785d51cc67942635954a2af0f2450626aa48724217756a626be5790f3b805d0179247239e5227d593abef730
ripemd-160
3f86060031edcd19e16f71a04a83e882d2282b3f
Diameter
57987788
Circumference
182174008.77872
Area
2.6409669500427E+15
Volume
1.0209588774272E+23
Surface area
1.0563867800171E+16
Circumference
182174008.77872
Perimeter
115975576
Area
840645889283236
Diagonal
41003558.120808
Surface area
5043875335699416
Volume
2.4373597805414E+22
Space diagonal
50218897.517266
Perimeter
86981682
Area
3.6401034785312E+14
Altitude
25109448.758633
Surface area
3.6401034785312E+14
Volume
2.8724560483536E+21
Height
13667852.706936