28421915 is an odd 8-digits composite number following 28421914
and preceding 28421916 . In scientific notation, it is written as 2.8421915 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 22737528 positive integers (up to 28421915) that are relatively prime to 28421915.
28421915 has 4 divisors, whose sum is 34106304
The reverse of 28421915 is 51912482
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million four hundred twenty-one thousand nine hundred fifteen
Scientific notation
2.8421915 × 10^7
Engineering notation
2.8421915 × 10^6
Prime Factorization
5 × 5684383
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28421915
Product of the distinct prime numbers
The prime factorization of 28421915 is 5 × 5684383.
Since it has a total of 2 prime factors.
3 , 2 , 99 , 26 , 743 , 950 , 7846 , 5098 , 38568 , 18060 , 67590 , 332635 , 3862597 , 836129 , 28672409 , 11657070 , 579815020 , 511152823 , 2731875576 , 1374041572
n×2
56843830
n×3
85265745
n×4
113687660
n×5
142109575
n÷2
14210957.5
n÷3
9473971.6666667
n÷3
7105478.75
n÷5
5684383
n2
807805252267225
n3
2.2959372216493E+22
n4
6.5254932559052E+29
n5
1.8546701465241E+37
2 √n
5331.2207795213
3 √n
305.17651701047
4 √n
73.01520923425
5 √n
30.954989943542
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
-28421914
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 28421915 can be divided by 4 positive divisors.
The sum of these divisors (counting 28421915) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100011010111100011011
3
Ternary
1222110222112112
4
Quaternary
1230122330123
5
Quinary
24234000130
6
Senary
2453102535
8
Octal
154327433
10
Decimal
28421915
12
Duodecimal
9627a4b
16
Hexadecimal
1b1af1b
20
Vigesimal
8hceff
36
Base36
gx6hn
md5
9b842676989a0e8a9f2d5359e194ff80
sha1
f37b754974908c0441556ff7a7cbe52eada524bb
sha256
f8a4ce0bdbeef71d6aee8db14f113f026b7083d627197b34006c8485beb0d783
sha512
f35a54b186b2c9a0ff2d7245420bd4def087f968134d22b4a8fc44d7817f2e90e522c2143f286493b5350229aa377faf4b7ca1ea94f04102e62727b34f62e8f9
ripemd-160
0a5a5c21aec2708f1015c51663d182556749747a
Diameter
56843830
Circumference
178580158.72991
Area
2.537795046054E+15
Volume
9.6171993448489E+22
Surface area
1.0151180184216E+16
Circumference
178580158.72991
Perimeter
113687660
Area
807805252267225
Diagonal
40194657.661615
Surface area
4846831513603350
Volume
2.2959372216493E+22
Space diagonal
49228200.828404
Perimeter
85265745
Area
3.4978993488696E+14
Altitude
24614100.414202
Surface area
3.4978993488696E+14
Volume
2.7057879643447E+21
Height
13398219.220538