28993855 is an odd 8-digits composite number following 28993854
and preceding 28993856 . In scientific notation, it is written as 2.8993855 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 21086400 positive integers (up to 28993855) that are relatively prime to 28993855.
28993855 has 4 divisors, whose sum is 29521072
The reverse of 28993855 is 55839982
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million nine hundred ninety-three thousand eight hundred fifty-five
Scientific notation
2.8993855 × 10^7
Engineering notation
2.8993855 × 10^6
Prime Factorization
55 × 527161
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28993855
Product of the distinct prime numbers
The prime factorization of 28993855 is 55 × 527161.
Since it has a total of 2 prime factors.
2 , 9 , 18 , 98 , 644 , 509 , 526 , 9493 , 41554 , 92587 , 831615 , 744461 , 9814031 , 6994795 , 32184255 , 20254996 , 286352930 , 646778703 , 81199080 , 6914879104
n×2
57987710
n×3
86981565
n×4
115975420
n×5
144969275
n÷2
14496927.5
n÷3
9664618.3333333
n÷3
7248463.75
n÷5
5798771
n2
840643627761025
n3
2.4373499449977E+22
n4
7.0668170889522E+29
n5
2.048942699886E+37
2 √n
5384.5942279804
3 √n
307.20998059095
4 √n
73.379794412225
5 √n
31.078581798802
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
-28993854
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 28993855 can be divided by 4 positive divisors.
The sum of these divisors (counting 28993855) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100110100100111111
3
Ternary
2000120001002111
4
Quaternary
1232212210333
5
Quinary
24410300410
6
Senary
2513234451
8
Octal
156464477
10
Decimal
28993855
12
Duodecimal
9862a27
16
Hexadecimal
1ba693f
20
Vigesimal
9144cf
36
Base36
h9fsv
md5
a1af33365d9d94308c5353a1725fad89
sha1
79f6db3feeb174eddd8b9bf1be3dcc3e9a4be69e
sha256
584094df28f688c4b1a0b902cf80774b13a5592a4a72b0240ad52d64a0b9d83f
sha512
dd732d8658fe15d8ff911649c490a804124f38a139404ef80e428af918f5bc07acd413497e6e228479f6a4cda152adfc127cd4f59f2ac784f2ce1c5f04a028e6
ripemd-160
8ba17a2101bffda0a0761e1eea36ee019ad000b9
Diameter
57987710
Circumference
182173763.7345
Area
2.6409598452611E+15
Volume
1.0209547575243E+23
Surface area
1.0563839381044E+16
Circumference
182173763.7345
Perimeter
115975420
Area
840643627761025
Diagonal
41003502.966479
Surface area
5043861766566150
Volume
2.4373499449977E+22
Space diagonal
50218829.967285
Perimeter
86981565
Area
3.6400936858528E+14
Altitude
25109414.983642
Surface area
3.6400936858528E+14
Volume
2.8724444570542E+21
Height
13667834.32216