28821808 is an even 8-digits composite number following 28821807
and preceding 28821809 . In scientific notation, it is written as 2.8821808 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 10 positive divisors.
There are 14410896 positive integers (up to 28821808) that are relatively prime to 28821808.
28821808 has 10 divisors, whose sum is 55842284
The reverse of 28821808 is 80812882
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million eight hundred twenty-one thousand eight hundred eight
Scientific notation
2.8821808 × 10^7
Engineering notation
2.8821808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1801363
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3602726
Product of the distinct prime numbers
The prime factorization of 28821808 is 2 × 2 × 2 × 2 × 1801363.
Since it has a total of 5 prime factors.
1 , 9 , 51 , 32 , 853 , 195 , 7606 , 4606 , 80950 , 70039 , 132040 , 220461 , 7462529 , 3430129 , 25064803 , 70753142 , 285616793 , 854112866 , 1707192243 , 6280509643
n×2
57643616
n×3
86465424
n×4
115287232
n×5
144109040
n÷2
14410904
n÷3
9607269.3333333
n÷3
7205452
n÷5
5764361.6
n2
830696616388864
n3
2.3942178383809E+22
n4
6.9005686847991E+29
n5
1.9888686572409E+37
2 √n
5368.5946019419
3 √n
306.601122308
4 √n
73.270694018427
5 √n
31.041610423081
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28821807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28821808 can be divided by 10 positive divisors.
The sum of these divisors (counting 28821808) is 1, the average is 0.1.
Base
System
Value
2
Binary
1101101111100100100110000
3
Ternary
2000020022002101
4
Quaternary
1231330210300
5
Quinary
24334244213
6
Senary
2505430144
8
Octal
155744460
10
Decimal
28821808
12
Duodecimal
979b354
16
Hexadecimal
1b7c930
20
Vigesimal
902ea8
36
Base36
h5r1s
md5
328247275ed9bd3ab628ccb885c826b7
sha1
06ff47e47a015a44363bbca20de05787bd4e33aa
sha256
f3105eb2d47d3bb998845b437fb596423145e60814acbb54377ce41bbb0e8688
sha512
630b2fb9cef9cb4839ea9530e7177e429ff65e5250338aefd6a71ea8804f22ccefe1b90c651cd241a114aebf2d42ca95badd2e0063a75e9a885ab1fb421db31a
ripemd-160
d48ac554f87138579a4ad088b462d4dfaf0f294f
Diameter
57643616
Circumference
181092760.55195
Area
2.6097103874092E+15
Volume
1.0028876229535E+23
Surface area
1.0438841549637E+16
Circumference
181092760.55195
Perimeter
115287232
Area
830696616388864
Diagonal
40760191.765713
Surface area
4984179698333184
Volume
2.3942178383809E+22
Space diagonal
49920835.821995
Perimeter
86465424
Area
3.5970218631527E+14
Altitude
24960417.910998
Surface area
3.5970218631527E+14
Volume
2.8216127819283E+21
Height
13586730.588571