66874821 is an odd 8-digits composite number following 66874820
and preceding 66874822 . In scientific notation, it is written as 6.6874821 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 38727936 positive integers (up to 66874821) that are relatively prime to 66874821.
66874821 has 16 divisors, whose sum is 78220800
The reverse of 66874821 is 12847866
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-six million eight hundred seventy-four thousand eight hundred twenty-one
Scientific notation
6.6874821 × 10^7
Engineering notation
6.6874821 × 10^6
Prime Factorization
39 × 13 × 17 × 7759
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66874821
Product of the distinct prime numbers
The prime factorization of 66874821 is 39 × 13 × 17 × 7759.
Since it has a total of 4 prime factors.
4 , 2 , 1 , 11 , 659 , 610 , 7465 , 1438 , 81705 , 82274 , 817927 , 313693 , 5577849 , 9731116 , 751936 , 32845951 , 330286619 , 685437746 , 753498634 , 3784780982
n×2
133749642
n×3
200624463
n×4
267499284
n×5
334374105
n÷2
33437410.5
n÷3
22291607
n÷3
16718705.25
n÷5
13374964.2
n2
4472241683782041
n3
2.9908036207166E+23
n4
2.0000945678158E+31
n5
1.3375596620575E+39
2 √n
8177.7026725114
3 √n
405.90170681401
4 √n
90.43065117819
5 √n
36.732672479339
1 , 13 , 17 , 39 , 221 , 507 , 663 , 7759 , 8619 , 100867 , 131903 , 302601 , 1714739 , 3933813 , 5144217 , 66874821
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66874820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66874821 can be divided by 16 positive divisors.
The sum of these divisors (counting 66874821) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111000110110111000101
3
Ternary
11122211121000020
4
Quaternary
3333012313011
5
Quinary
114104443241
6
Senary
10345205353
8
Octal
377066705
10
Decimal
66874821
12
Duodecimal
1a490859
16
Hexadecimal
3fc6dc5
20
Vigesimal
10hj711
36
Base36
13tcxx
md5
cf872e15d7665ab0b2440063622f46bc
sha1
ce040fa7ee786145e8b607872eaf8b289d73ffd0
sha256
e39e53e333ce9ed2af069bba9f4ef2a84ce753fbc02e33be5f8e99ba1a78376d
sha512
256c4c24ffefa1227af82bc38e70668c46f64acc425d99dce9bd60c6406aae462efa224c5dfb091e5dc0d2068ff9f55666a904a42ccc858fbf16fe0207a1e744
ripemd-160
23d7a0782923796b5e6f150208a7fcdfe8eb9dbc
Diameter
133749642
Circumference
420186892.72746
Area
1.4049961618848E+16
Volume
1.2527848910897E+24
Surface area
5.6199846475391E+16
Circumference
420186892.72746
Perimeter
267499284
Area
4472241683782041
Diagonal
94575278.839473
Surface area
26833450102692246
Volume
2.9908036207166E+23
Space diagonal
115830587.71907
Perimeter
200624463
Area
1.9365374550095E+15
Altitude
57915293.859537
Surface area
1.9365374550095E+15
Volume
3.52469586901E+22
Height
31525092.946491