68442918 is an even 8-digits composite number following 68442917
and preceding 68442919 . In scientific notation, it is written as 6.8442918 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 21414528 positive integers (up to 68442918) that are relatively prime to 68442918.
68442918 has 32 divisors, whose sum is 145328256
The reverse of 68442918 is 81924486
Previous prime number is 523
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-eight million four hundred forty-two thousand nine hundred eighteen
Scientific notation
6.8442918 × 10^7
Engineering notation
6.8442918 × 10^6
Prime Factorization
2 × 3 × 17 × 523 × 1283
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
68442918
Product of the distinct prime numbers
The prime factorization of 68442918 is 2 × 3 × 17 × 523 × 1283.
Since it has a total of 5 prime factors.
7 , 1 , 92 , 11 , 648 , 687 , 9951 , 1943 , 39514 , 30986 , 469356 , 47780 , 2335678 , 4160337 , 49969230 , 36149408 , 384412760 , 154837206 , 3417771943 , 3972458477
n×2
136885836
n×3
205328754
n×4
273771672
n×5
342214590
n÷2
34221459
n÷3
22814306
n÷3
17110729.5
n÷5
13688583.6
n2
4684433024354724
n3
3.206162653624E+23
n4
2.1943912759665E+31
n5
1.5019054216089E+39
2 √n
8273.0235101805
3 √n
409.04978839654
4 √n
90.956162573959
5 √n
36.903342455458
1 , 2 , 3 , 6 , 17 , 34 , 51 , 102 , 523 , 1046 , 1283 , 1569 , 2566 , 3138 , 3849 , 7698 , 8891 , 17782 , 21811 , 26673 , 43622 , 53346 , 65433 , 130866 , 671009 , 1342018 , 2013027 , 4026054 , 11407153 , 22814306 , 34221459 , 68442918
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68442917
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68442918 can be divided by 32 positive divisors.
The sum of these divisors (counting 68442918) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100000101000101101100100110
3
Ternary
11202210021000220
4
Quaternary
10011011230212
5
Quinary
120010133133
6
Senary
10442545210
8
Octal
405055446
10
Decimal
68442918
12
Duodecimal
1ab08206
16
Hexadecimal
4145b26
20
Vigesimal
117f75i
36
Base36
14qyw6
md5
c72451daf7a2f5c5180a16623e7e4e63
sha1
21c36538f41f6d2724679ee59e071896505cac48
sha256
85de63655e0c484658622ff86c2c76fd32c7a6fb09e610c5cd51cdbe4444de36
sha512
d4159460793d763d7ed194c24e794b5656729b574631a1459d67c9352eb76f7c07d6808e5fa3126269a9aa4eab8a5aa0659e8d6137f2ea80732ab52e7a479b5d
ripemd-160
90c247394064c91f6ad5307183692ade8735c24f
Diameter
136885836
Circumference
430039536.7581
Area
1.4716580375546E+16
Volume
1.3429942718452E+24
Surface area
5.8866321502185E+16
Circumference
430039536.7581
Perimeter
273771672
Area
4684433024354724
Diagonal
96792902.88399
Surface area
28106598146128344
Volume
3.206162653624E+23
Space diagonal
118546611.39427
Perimeter
205328754
Area
2.028419000709E+15
Altitude
59273305.697135
Surface area
2.028419000709E+15
Volume
3.7784989232743E+22
Height
32264300.96133