28490691 is an odd 8-digits composite number following 28490690
and preceding 28490692 . In scientific notation, it is written as 2.8490691 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 17743488 positive integers (up to 28490691) that are relatively prime to 28490691.
28490691 has 16 divisors, whose sum is 40521600
The reverse of 28490691 is 19609482
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million four hundred ninety thousand six hundred ninety-one
Scientific notation
2.8490691 × 10^7
Engineering notation
2.8490691 × 10^6
Prime Factorization
3 × 17 × 139 × 4019
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28490691
Product of the distinct prime numbers
The prime factorization of 28490691 is 3 × 17 × 139 × 4019.
Since it has a total of 4 prime factors.
4 , 7 , 72 , 37 , 413 , 972 , 6140 , 7485 , 24253 , 4631 , 912239 , 94366 , 3996865 , 3292241 , 25560412 , 23085559 , 793795372 , 932586631 , 8771612894 , 1807500800
n×2
56981382
n×3
85472073
n×4
113962764
n×5
142453455
n÷2
14245345.5
n÷3
9496897
n÷3
7122672.75
n÷5
5698138.2
n2
811719473657481
n3
2.3126448702658E+22
n4
6.5888850391478E+29
n5
1.8772188768488E+37
2 √n
5337.6671870771
3 √n
305.42247642963
4 √n
73.059340176853
5 √n
30.969956582436
1 , 3 , 17 , 51 , 139 , 417 , 2363 , 4019 , 7089 , 12057 , 68323 , 204969 , 558641 , 1675923 , 9496897 , 28490691
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
-28490690
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 28490691 can be divided by 16 positive divisors.
The sum of these divisors (counting 28490691) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101100101011101111000011
3
Ternary
1222121110212210
4
Quaternary
1230223233003
5
Quinary
24243200231
6
Senary
2454353203
8
Octal
154535703
10
Decimal
28490691
12
Duodecimal
965b803
16
Hexadecimal
1b2bbc3
20
Vigesimal
8i16eb
36
Base36
gynk3
md5
b23db3fb53ab2a9b1ec33d0890c7da40
sha1
47e8c89970a94dd4039063bd21d255a75e3def64
sha256
db394708a454d3c00db05db0771ac69f01a8062425afec1b0d9510ac3681f6c8
sha512
a699a7e3537778890dc7edf646a7fa06a44da6f5ac93caabcf35258d9ba62cd07bd2f2d1cbbb631edb302913a049f956364695df5403daaf83627f531002071a
ripemd-160
d8339f83939bf9ea50fb7f1d7a4ad2fe9d5306b4
Diameter
56981382
Circumference
179012291.08259
Area
2.5500919352181E+15
Volume
9.6871841797188E+22
Surface area
1.0200367740872E+16
Circumference
179012291.08259
Perimeter
113962764
Area
811719473657481
Diagonal
40291921.613581
Surface area
4870316841944886
Volume
2.3126448702658E+22
Space diagonal
49347324.354745
Perimeter
85472073
Area
3.5148484246696E+14
Altitude
24673662.177373
Surface area
3.5148484246696E+14
Volume
2.7254781170687E+21
Height
13430640.53786