66990806 is an even 8-digits composite number following 66990805
and preceding 66990807 . In scientific notation, it is written as 6.6990806 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 33495402 positive integers (up to 66990806) that are relatively prime to 66990806.
66990806 has 4 divisors, whose sum is 100486212
The reverse of 66990806 is 60809966
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
sixty-six million nine hundred ninety thousand eight hundred six
Scientific notation
6.6990806 × 10^7
Engineering notation
6.6990806 × 10^6
Prime Factorization
2 × 33495403
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66990806
Product of the distinct prime numbers
The prime factorization of 66990806 is 2 × 33495403.
Since it has a total of 2 prime factors.
7 , 5 , 28 , 85 , 687 , 217 , 5706 , 3715 , 27706 , 53977 , 605778 , 740631 , 1709660 , 5043496 , 65614786 , 56458553 , 281951311 , 704447949 , 796056352 , 8110170891
n×2
133981612
n×3
200972418
n×4
267963224
n×5
334954030
n÷2
33495403
n÷3
22330268.666667
n÷3
16747701.5
n÷5
13398161.2
n2
4487768088529636
n3
3.0063920139168E+23
n4
2.0140062416425E+31
n5
1.3491990141666E+39
2 √n
8184.7911396687
3 √n
406.13623114833
4 √n
90.469835523608
5 √n
36.745405183135
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
-66990805
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 66990806 can be divided by 4 positive divisors.
The sum of these divisors (counting 66990806) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111111100011001011010110
3
Ternary
11200001111002222
4
Quaternary
3333203023112
5
Quinary
114122201211
6
Senary
10351502342
8
Octal
377431326
10
Decimal
66990806
12
Duodecimal
1a5279b2
16
Hexadecimal
3fe32d6
20
Vigesimal
10idh06
36
Base36
13vufq
md5
b459de54312bc4f6567ebee27f764eb7
sha1
0ccd887a42b55b9390b461ed892d035a88ebdc08
sha256
544d6aaae6525b76a19610f92836f7efa681877349464a45b40ae866e45918e4
sha512
831b5ec293eddbcf5c3050d53596f62d9926b5e2b0eff8468eb053871ae7a94da03d9e833ed1e9581d0f56415b2df56a02d13c9b218f513f759223ae899354b2
ripemd-160
4990df868bd8c06e0a6eccc0041b152f12d061a8
Diameter
133981612
Circumference
420915647.97532
Area
1.4098739257939E+16
Volume
1.2593145419643E+24
Surface area
5.6394957031758E+16
Circumference
420915647.97532
Perimeter
267963224
Area
4487768088529636
Diagonal
94739306.399505
Surface area
26926608531177816
Volume
3.0063920139168E+23
Space diagonal
116031479.63199
Perimeter
200972418
Area
1.9432605854799E+15
Altitude
58015739.815995
Surface area
1.9432605854799E+15
Volume
3.5430669665761E+22
Height
31579768.799835