66808213 is an odd 8-digits composite number following 66808212
and preceding 66808214 . In scientific notation, it is written as 6.6808213 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 65892960 positive integers (up to 66808213) that are relatively prime to 66808213.
66808213 has 4 divisors, whose sum is 67723468
The reverse of 66808213 is 31280866
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
sixty-six million eight hundred eight thousand two hundred thirteen
Scientific notation
6.6808213 × 10^7
Engineering notation
6.6808213 × 10^6
Prime Factorization
73 × 915181
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66808213
Product of the distinct prime numbers
The prime factorization of 66808213 is 73 × 915181.
Since it has a total of 2 prime factors.
7 , 4 , 6 , 48 , 820 , 945 , 8950 , 2180 , 31203 , 27776 , 702137 , 967548 , 4217902 , 324817 , 64876584 , 81066080 , 99729334 , 489083778 , 7946361301 , 6263003709
n×2
133616426
n×3
200424639
n×4
267232852
n×5
334041065
n÷2
33404106.5
n÷3
22269404.333333
n÷3
16702053.25
n÷5
13361642.6
n2
4463337324253369
n3
2.9818759064957E+23
n4
1.9921380070073E+31
n5
1.3309118029754E+39
2 √n
8173.6291205315
3 √n
405.76690130925
4 √n
90.408125301499
5 √n
36.725352339514
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
-66808212
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 66808213 can be divided by 4 positive divisors.
The sum of these divisors (counting 66808213) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111110110110100110010101
3
Ternary
11122201012122021
4
Quaternary
3332312212111
5
Quinary
114100330323
6
Senary
10343533141
8
Octal
376664625
10
Decimal
66808213
12
Duodecimal
1a45a1b1
16
Hexadecimal
3fb6995
20
Vigesimal
10hb0ad
36
Base36
13rxjp
md5
26181530b5fa82a95b0130a6987c52b3
sha1
fbd8b18e27a18db2aaff9416d615412254f27f5a
sha256
91fc576968636bbffec462951177634f41f93f8793874b4ea1e8e393ccdf6696
sha512
7590b986d9de6e1ded4eade43ed298c73480af02a5a998cb7f93e46a6faa1f7fd4eb3d6e2bb097774ad2f4586813223016d17f587b2e5eaf7ff463c16c548f35
ripemd-160
5ff6af59a02ce54cfc4cc9147758e4bc5a838535
Diameter
133616426
Circumference
419768382.32052
Area
1.4021987748368E+16
Volume
1.2490452589018E+24
Surface area
5.608795099347E+16
Circumference
419768382.32052
Perimeter
267232852
Area
4463337324253369
Diagonal
94481080.902511
Surface area
26780023945520214
Volume
2.9818759064957E+23
Space diagonal
115715219.27888
Perimeter
200424639
Area
1.9326817542313E+15
Altitude
57857609.639442
Surface area
1.9326817542313E+15
Volume
3.5141744568998E+22
Height
31493693.63417