28461921 is an odd 8-digits composite number following 28461920
and preceding 28461922 . In scientific notation, it is written as 2.8461921 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 18974612 positive integers (up to 28461921) that are relatively prime to 28461921.
28461921 has 4 divisors, whose sum is 37949232
The reverse of 28461921 is 12916482
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million four hundred sixty-one thousand nine hundred twenty-one
Scientific notation
2.8461921 × 10^7
Engineering notation
2.8461921 × 10^6
Prime Factorization
3 × 9487307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28461921
Product of the distinct prime numbers
The prime factorization of 28461921 is 3 × 9487307.
Since it has a total of 2 prime factors.
7 , 10 , 63 , 60 , 194 , 487 , 889 , 6530 , 71119 , 30865 , 996367 , 260635 , 8999073 , 7126049 , 38975909 , 27782153 , 430731282 , 977920642 , 5570164488 , 7167166927
n×2
56923842
n×3
85385763
n×4
113847684
n×5
142309605
n÷2
14230960.5
n÷3
9487307
n÷3
7115480.25
n÷5
5692384.2
n2
810080947010241
n3
2.3056459917411E+22
n4
6.5623114070901E+29
n5
1.86775988846E+37
2 √n
5334.9715088274
3 √n
305.31963624201
4 √n
73.040889293788
5 √n
30.96369934027
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
-28461920
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 28461921 can be divided by 4 positive divisors.
The sum of these divisors (counting 28461921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100100100101101100001
3
Ternary
1222120000102020
4
Quaternary
1230210231201
5
Quinary
24241240141
6
Senary
2454012053
8
Octal
154445541
10
Decimal
28461921
12
Duodecimal
9647029
16
Hexadecimal
1b24b61
20
Vigesimal
8hheg1
36
Base36
gy1cx
md5
0a604e5b7f768d29f970e6169d38c648
sha1
0dc0058890660172613f3041483e91d74242ac3b
sha256
62131875311bdaeb3909988fb7549f090dfbd393710d9ccdfe34d5a6cb3e8734
sha512
7ace0f97b32769426c7e47e0cfeb934030d89b88f84421eae30cf8f3ab1252a11afebe54c19a269943605760004488f6085765b08e6d03664bac65a26617eba7
ripemd-160
e1a1e66fae1cd0c6b16cd96b7e30301938a7105f
Diameter
56923842
Circumference
178831523.84131
Area
2.5449443519404E+15
Volume
9.65786734591E+22
Surface area
1.0179777407762E+16
Circumference
178831523.84131
Perimeter
113847684
Area
810080947010241
Diagonal
40251234.689392
Surface area
4860485682061446
Volume
2.3056459917411E+22
Space diagonal
49297493.253012
Perimeter
85385763
Area
3.5077533961631E+14
Altitude
24648746.626506
Surface area
3.5077533961631E+14
Volume
2.7172298596262E+21
Height
13417078.229797