66538861 is an odd 8-digits composite number following 66538860
and preceding 66538862 . In scientific notation, it is written as 6.6538861 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 65094000 positive integers (up to 66538861) that are relatively prime to 66538861.
66538861 has 8 divisors, whose sum is 67995648
The reverse of 66538861 is 16883566
Previous prime number is 5711
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-six million five hundred thirty-eight thousand eight hundred sixty-one
Scientific notation
6.6538861 × 10^7
Engineering notation
6.6538861 × 10^6
Prime Factorization
61 × 5711 × 191
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66538861
Product of the distinct prime numbers
The prime factorization of 66538861 is 61 × 5711 × 191.
Since it has a total of 3 prime factors.
5 , 8 , 51 , 32 , 723 , 583 , 4826 , 774 , 3502 , 36014 , 435996 , 276014 , 5287603 , 7011081 , 61769965 , 29512576 , 932032285 , 702063 , 1906689803 , 5348226645
n×2
133077722
n×3
199616583
n×4
266155444
n×5
332694305
n÷2
33269430.5
n÷3
22179620.333333
n÷3
16634715.25
n÷5
13307772.2
n2
4427420023177321
n3
2.9459548551081E+23
n4
1.9602048061631E+31
n5
1.3042979512882E+39
2 √n
8157.1355879377
3 √n
405.2208539873
4 √n
90.316862146211
5 √n
36.695691200132
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66538860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66538861 can be divided by 8 positive divisors.
The sum of these divisors (counting 66538861) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101110100110101101101
3
Ternary
11122012112011021
4
Quaternary
3331310311231
5
Quinary
114013220421
6
Senary
10334054141
8
Octal
375646555
10
Decimal
66538861
12
Duodecimal
1a34a351
16
Hexadecimal
3f74d6d
20
Vigesimal
10fh731
36
Base36
13m5pp
md5
0c47a9e2d7bbfebcfcb13566e9148de4
sha1
5246c1bae6e1de323582ae43b1298baf5cfbad68
sha256
5376360525677e3eb00c98be4e0318f86e159472f2b6bb291d5203692f6bb792
sha512
8c90ca87d633fa59cc4064ab731d1f24d352b5e7348c6df0601a7e7e9df8c65ade59ea5a2a21efa038d5db9c34d21aac92ffe11522395464291410e0600e9ffa
ripemd-160
912b844b6ce08d98e1de30c233483db163390f2d
Diameter
133077722
Circumference
418075993.79166
Area
1.390915021917E+16
Volume
1.233998684082E+24
Surface area
5.5636600876681E+16
Circumference
418075993.79166
Perimeter
266155444
Area
4427420023177321
Diagonal
94100159.651058
Surface area
26564520139063926
Volume
2.9459548551081E+23
Space diagonal
115248687.92976
Perimeter
199616583
Area
1.9171291066477E+15
Altitude
57624343.964882
Surface area
1.9171291066477E+15
Volume
3.4718410918606E+22
Height
31366719.883686