66406720 is an even 8-digits composite number following 66406719
and preceding 66406721 . In scientific notation, it is written as 6.6406720 × 10^7.
The sum of its digits is 31. It has a total of 8 prime factors and 28 positive divisors.
There are 26562560 positive integers (up to 66406720) that are relatively prime to 66406720.
66406720 has 28 divisors, whose sum is 158131764
The reverse of 66406720 is 02760466
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
sixty-six million four hundred six thousand seven hundred twenty
Scientific notation
6.6406720 × 10^7
Engineering notation
6.6406720 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 5 × 207521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
2075210
Product of the distinct prime numbers
The prime factorization of 66406720 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 207521.
Since it has a total of 8 prime factors.
9 , 10 , 44 , 89 , 279 , 666 , 6109 , 8017 , 13810 , 96589 , 851842 , 296932 , 6935427 , 9630188 , 61660566 , 65519898 , 394671651 , 401987975 , 7076838030 , 3550335329
n×2
132813440
n×3
199220160
n×4
265626880
n×5
332033600
n÷2
33203360
n÷3
22135573.333333
n÷3
16601680
n÷5
13281344
n2
4409852461158400
n3
2.9284383762946E+23
n4
1.9446798729185E+31
n5
1.2913981181053E+39
2 √n
8149.0318443359
3 √n
404.9524305253
4 √n
90.271988148793
5 √n
36.681104651
1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 32 , 40 , 64 , 80 , 160 , 320 , 207521 , 415042 , 830084 , 1037605 , 1660168 , 2075210 , 3320336 , 4150420 , 6640672 , 8300840 , 13281344 , 16601680 , 33203360 , 66406720
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66406719
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66406720 can be divided by 28 positive divisors.
The sum of these divisors (counting 66406720) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
11111101010100100101000000
3
Ternary
11121221210220011
4
Quaternary
3331110211000
5
Quinary
114000003340
6
Senary
10331154304
8
Octal
375244500
10
Decimal
66406720
12
Duodecimal
1a2a5994
16
Hexadecimal
3f54940
20
Vigesimal
10f0gg0
36
Base36
13jbr4
md5
5676c5116821edad065d405c7229aaf0
sha1
d90c8285701fefd9d02df4e66c2b8f7c766b3e23
sha256
44f0cd748483bf453238bf5b189b99d178f04930bb88068ce9fd941b281d0709
sha512
8a2fc9d17ec8aa5b8a116d8f3d884fe12b8f6f30b6dad4eb3c91a4d63b668371791b7c3f6e05f0648565bf705f2fce96090f793abafdc8cc01eea23a929f6935
ripemd-160
8bf942a30389621683dfe9147c3d19f345f76021
Diameter
132813440
Circumference
417245727.40199
Area
1.385396009539E+16
Volume
1.2266613985943E+24
Surface area
5.541584038156E+16
Circumference
417245727.40199
Perimeter
265626880
Area
4409852461158400
Diagonal
93913284.056713
Surface area
26459114766950400
Volume
2.9284383762946E+23
Space diagonal
115019813.004
Perimeter
199220160
Area
1.9095221291523E+15
Altitude
57509906.502
Surface area
1.9095221291523E+15
Volume
3.451197723608E+22
Height
31304428.018904