28398421 is an odd 8-digits composite number following 28398420
and preceding 28398422 . In scientific notation, it is written as 2.8398421 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 28305612 positive integers (up to 28398421) that are relatively prime to 28398421.
28398421 has 4 divisors, whose sum is 28491232
The reverse of 28398421 is 12489382
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million three hundred ninety-eight thousand four hundred twenty-one
Scientific notation
2.8398421 × 10^7
Engineering notation
2.8398421 × 10^6
Prime Factorization
307 × 92503
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28398421
Product of the distinct prime numbers
The prime factorization of 28398421 is 307 × 92503.
Since it has a total of 2 prime factors.
6 , 5 , 2 , 57 , 617 , 898 , 564 , 6542 , 5400 , 26302 , 603954 , 4650 , 2937978 , 9165846 , 93729145 , 53024015 , 492267578 , 474343189 , 5735674297 , 2349301570
n×2
56796842
n×3
85195263
n×4
113593684
n×5
141992105
n÷2
14199210.5
n÷3
9466140.3333333
n÷3
7099605.25
n÷5
5679684.2
n2
806470315293241
n3
2.29024835377E+22
n4
6.5039436944918E+29
n5
1.8470173119647E+37
2 √n
5329.0168886953
3 √n
305.09240593445
4 √n
73.000115675904
5 √n
30.949870674712
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
-28398420
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 28398421 can be divided by 4 positive divisors.
The sum of these divisors (counting 28398421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010101001101010101
3
Ternary
1222102210022101
4
Quaternary
1230111031111
5
Quinary
24232222141
6
Senary
2452402101
8
Octal
154251525
10
Decimal
28398421
12
Duodecimal
9616331
16
Hexadecimal
1b15355
20
Vigesimal
8h9g11
36
Base36
gwod1
md5
061c1944d4187508a335e32d0f2cec2c
sha1
093f8986f9177bbc2a761d998ea2e777c8a681c0
sha256
aa22255017b863ae257796c691a02428cadbfb29f8017ae84f86c7aa05299fbe
sha512
645bb69afd071286484f624a774ca0406592e44838166648091f83aad7b6c509db886086eb532b2a8665ece2823ef27a49711b9fa7b31856a6e98ff6b9cf07dd
ripemd-160
a5642c220d421bd84cd38e544088946a4d524a88
Diameter
56796842
Circumference
178432541.5743
Area
2.5336012178635E+15
Volume
9.5933698708E+22
Surface area
1.0134404871454E+16
Circumference
178432541.5743
Perimeter
113593684
Area
806470315293241
Diagonal
40161432.128181
Surface area
4838821891759446
Volume
2.29024835377E+22
Space diagonal
49187508.026731
Perimeter
85195263
Area
3.49211890221E+14
Altitude
24593754.013365
Surface area
3.49211890221E+14
Volume
2.6990835692535E+21
Height
13387144.042727