68442021 is an odd 8-digits composite number following 68442020
and preceding 68442022 . In scientific notation, it is written as 6.8442021 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 45628008 positive integers (up to 68442021) that are relatively prime to 68442021.
68442021 has 4 divisors, whose sum is 76046700
The reverse of 68442021 is 12024486
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
sixty-eight million four hundred forty-two thousand twenty-one
Scientific notation
6.8442021 × 10^7
Engineering notation
6.8442021 × 10^6
Prime Factorization
9 × 7604669
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68442021
Product of the distinct prime numbers
The prime factorization of 68442021 is 9 × 7604669.
Since it has a total of 2 prime factors.
3 , 9 , 39 , 11 , 369 , 926 , 5859 , 7405 , 92407 , 25719 , 670844 , 158687 , 7268317 , 393198 , 41123256 , 84481793 , 346367389 , 320105740 , 6733468189 , 9113633938
n×2
136884042
n×3
205326063
n×4
273768084
n×5
342210105
n÷2
34221010.5
n÷3
22814007
n÷3
17110505.25
n÷5
13688404.2
n2
4684310238564441
n3
3.2060365971834E+23
n4
2.194276241112E+31
n5
1.5018070057399E+39
2 √n
8272.9692976585
3 √n
409.04800141222
4 √n
90.955864558908
5 √n
36.903245725299
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
-68442020
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 68442021 can be divided by 4 positive divisors.
The sum of these divisors (counting 68442021) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000101000101011110100101
3
Ternary
11202210012210200
4
Quaternary
10011011132211
5
Quinary
120010121041
6
Senary
10442541113
8
Octal
405053645
10
Decimal
68442021
12
Duodecimal
1ab07799
16
Hexadecimal
41457a5
20
Vigesimal
117f511
36
Base36
14qy79
md5
beb477eaaa5e51ae4f3755242528f50a
sha1
ef1d61559779e0fbb7869a14fc593b3939bb9fd6
sha256
787bf2853fc01be523de3a574a18e33d4173ffcd5c7909c3e9226aee29f9d585
sha512
66a695cbf99975258c4e5d6c322dc734a02dca20f678189b316f8ac35ad7f55a146956f6259567e7ae8bfcaac9ec0388182bc509d68f2da3f9ee4881c7f80af8
ripemd-160
7b91b9e1f929a61ee170b5e0e8e78a3df52fc121
Diameter
136884042
Circumference
430033900.74088
Area
1.471619463261E+16
Volume
1.3429414694469E+24
Surface area
5.8864778530438E+16
Circumference
430033900.74088
Perimeter
273768084
Area
4684310238564441
Diagonal
96791634.334424
Surface area
28105861431386646
Volume
3.2060365971834E+23
Space diagonal
118545057.7447
Perimeter
205326063
Area
2.0283658329022E+15
Altitude
59272528.872348
Surface area
2.0283658329022E+15
Volume
3.7783503643344E+22
Height
32263878.111475