66879940 is an even 8-digits composite number following 66879939
and preceding 66879941 . In scientific notation, it is written as 6.6879940 × 10^7.
The sum of its digits is 49. It has a total of 5 prime factors and 24 positive divisors.
There are 26450688 positive integers (up to 66879940) that are relatively prime to 66879940.
66879940 has 24 divisors, whose sum is 142029720
The reverse of 66879940 is 04997866
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
sixty-six million eight hundred seventy-nine thousand nine hundred forty
Scientific notation
6.6879940 × 10^7
Engineering notation
6.6879940 × 10^6
Prime Factorization
2 × 2 × 5 × 89 × 37573
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
33439970
Product of the distinct prime numbers
The prime factorization of 66879940 is 2 × 2 × 5 × 89 × 37573.
Since it has a total of 5 prime factors.
5 , 6 , 46 , 38 , 17 , 135 , 9287 , 1125 , 26333 , 28297 , 614682 , 558205 , 2210982 , 4384803 , 90534246 , 43112417 , 263584242 , 824570173 , 9195681704 , 9738195844
n×2
133759880
n×3
200639820
n×4
267519760
n×5
334399700
n÷2
33439970
n÷3
22293313.333333
n÷3
16719985
n÷5
13375988
n2
4472926374403600
n3
2.9914904754453E+23
n4
2.0007070350835E+31
n5
1.3380716646396E+39
2 √n
8178.0156517336
3 √n
405.91206326702
4 √n
90.432381654657
5 √n
36.733234809946
1 , 2 , 4 , 5 , 10 , 20 , 89 , 178 , 356 , 445 , 890 , 1780 , 37573 , 75146 , 150292 , 187865 , 375730 , 751460 , 3343997 , 6687994 , 13375988 , 16719985 , 33439970 , 66879940
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66879939
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66879940 can be divided by 24 positive divisors.
The sum of these divisors (counting 66879940) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
11111111001000000111000100
3
Ternary
11122211212000211
4
Quaternary
3333020013010
5
Quinary
114110124230
6
Senary
10345245204
8
Octal
377100704
10
Decimal
66879940
12
Duodecimal
1a493804
16
Hexadecimal
3fc81c4
20
Vigesimal
10hjjh0
36
Base36
13tgw4
md5
e769caef073b0cd80df8aa9a1164a52d
sha1
a93d051b62af2a3c8731e42e18530b72a0a90976
sha256
f11e91d12ddc4fab644508496a2448e65cbd55c7096741806036989cb2a6bb46
sha512
820329b6e03747d5e86b11ecd6a0663b1fea996584954cc4fc58fb84c09e8ee07d10bad54402ee0753a32bac3884cc39bca96bcd158ca3d1ae5cee0d41db5575
ripemd-160
07f7d2fbf54a8f0a142799cd15bc4e4712be3658
Diameter
133759880
Circumference
420219056.35305
Area
1.4052112637874E+16
Volume
1.2530726001257E+24
Surface area
5.6208450551498E+16
Circumference
420219056.35305
Perimeter
267519760
Area
4472926374403600
Diagonal
94582518.198699
Surface area
26837558246421600
Volume
2.9914904754453E+23
Space diagonal
115839454.08716
Perimeter
200639820
Area
1.9368339347455E+15
Altitude
57919727.043579
Surface area
1.9368339347455E+15
Volume
3.5255053350706E+22
Height
31527506.066233