28420121 is an odd 8-digits composite number following 28420120
and preceding 28420122 . In scientific notation, it is written as 2.8420121 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 28322832 positive integers (up to 28420121) that are relatively prime to 28420121.
28420121 has 4 divisors, whose sum is 28517412
The reverse of 28420121 is 12102482
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-eight million four hundred twenty thousand one hundred twenty-one
Scientific notation
2.8420121 × 10^7
Engineering notation
2.8420121 × 10^6
Prime Factorization
293 × 96997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28420121
Product of the distinct prime numbers
The prime factorization of 28420121 is 293 × 96997.
Since it has a total of 2 prime factors.
5 , 6 , 65 , 15 , 408 , 718 , 7138 , 6075 , 81886 , 86582 , 815914 , 609592 , 1449495 , 2459036 , 90884863 , 23868665 , 331426925 , 991476728 , 4725294219 , 7654453690
n×2
56840242
n×3
85260363
n×4
113680484
n×5
142100605
n÷2
14210060.5
n÷3
9473373.6666667
n÷3
7105030.25
n÷5
5684024.2
n2
807703277654641
n3
2.2955024883041E+22
n4
6.5238458473405E+29
n5
1.8540848836676E+37
2 √n
5331.0525227201
3 √n
305.17009593022
4 √n
73.014057021371
5 √n
30.954599155982
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
-28420120
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 28420121 can be divided by 4 positive divisors.
The sum of these divisors (counting 28420121) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100011010100000011001
3
Ternary
1222110220002002
4
Quaternary
1230122200121
5
Quinary
24233420441
6
Senary
2453050345
8
Octal
154324031
10
Decimal
28420121
12
Duodecimal
96269b5
16
Hexadecimal
1b1a819
20
Vigesimal
8hca61
36
Base36
gx53t
md5
782ddcf000f83dd41c85dbf1ff0f18ec
sha1
988e84ea47170461ab18b5f800327a30439da66c
sha256
69ac6bca61590b1a3214381ddd4d7da219c487333d3c73017a05ca479cb5ef3f
sha512
13974fd990d352a91333fea0675a57d90c629bf33882dcca8242b6620004cee5b29f86da74e6837ac03df14f175c2d27e8abf90c0ca8cf715ef6dd069ea7585c
ripemd-160
cdcd12fbd368537952e1fa77b1aa80dfbe374a58
Diameter
56840242
Circumference
178568886.69547
Area
2.5374746833602E+15
Volume
9.6153783380712E+22
Surface area
1.0149898733441E+16
Circumference
178568886.69547
Perimeter
113680484
Area
807703277654641
Diagonal
40192120.562484
Surface area
4846219665927846
Volume
2.2955024883041E+22
Space diagonal
49225093.529255
Perimeter
85260363
Area
3.4974577858444E+14
Altitude
24612546.764628
Surface area
3.4974577858444E+14
Volume
2.7052756261841E+21
Height
13397373.520828