168398421 is an odd 9-digits composite number following 168398420
and preceding 168398422 . In scientific notation, it is written as 1.68398421 × 10^8.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 112265612 positive integers (up to 168398421) that are relatively prime to 168398421.
168398421 has 4 divisors, whose sum is 224531232
The reverse of 168398421 is 124893861
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred sixty-eight million three hundred ninety-eight thousand four hundred twenty-one
Scientific notation
1.68398421 × 10^8
Engineering notation
1.68398421 × 10^6
Prime Factorization
3 × 56132807
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
168398421
Product of the distinct prime numbers
The prime factorization of 168398421 is 3 × 56132807.
Since it has a total of 2 prime factors.
6 , 9 , 11 , 90 , 818 , 870 , 7945 , 7591 , 72844 , 75271 , 116684 , 158652 , 8598505 , 8742495 , 20686786 , 37495944 , 395412044 , 607010034 , 9077538749 , 9961451826
n×2
336796842
n×3
505195263
n×4
673593684
n×5
841992105
n÷2
84199210.5
n÷3
56132807
n÷3
42099605.25
n÷5
33679684.2
n2
28358028195293241
n3
4.7754471707609E+24
n4
8.0417776312505E+32
n5
1.3542226551357E+41
2 √n
12976.841719001
3 √n
552.22068667486
4 √n
113.91594146124
5 √n
44.184261748997
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
-168398420
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 168398421 can be divided by 4 positive divisors.
The sum of these divisors (counting 168398421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010011000111001010101
3
Ternary
102201212112012120
4
Quaternary
22002120321111
5
Quinary
321102222141
6
Senary
24413210153
8
Octal
1202307125
10
Decimal
168398421
12
Duodecimal
48490959
16
Hexadecimal
a098e55
20
Vigesimal
2cc9g11
36
Base36
2s9d1x
md5
baca986a28cd6b2e2dd07cdb03722384
sha1
9f9c8c5e14814892b8603acf46535b2cd7f2dc14
sha256
85b0cad670a0849e7733586484f3ec8581bc9a680c6dd8fec5219ea2b697cc61
sha512
48fffe6e1e55e7bd8ba3425798b6aa9d4b118c84a5529d94704c4e958ad6a095e1cdc2f9a82454cd91903d8b73fc41604d17c25aa5f689dc269a3fef590fba5f
ripemd-160
629cfb429d0beb3d1453181a2d808c33e356ebe0
Diameter
336796842
Circumference
1058078484.5794
Area
8.9089373048625E+16
Volume
2.0003346332358E+25
Surface area
3.563574921945E+17
Circumference
1058078484.5794
Perimeter
673593684
Area
28358028195293241
Diagonal
238151330.86041
Surface area
170148169171759446
Volume
4.7754471707609E+24
Space diagonal
291674621.08637
Perimeter
505195263
Area
1.227938640918E+16
Altitude
145837310.54319
Surface area
1.227938640918E+16
Volume
5.6279184627385E+23
Height
79383776.953471