66887621 is an odd 8-digits composite number following 66887620
and preceding 66887622 . In scientific notation, it is written as 6.6887621 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 66871200 positive integers (up to 66887621) that are relatively prime to 66887621.
66887621 has 4 divisors, whose sum is 66904044
The reverse of 66887621 is 12678866
Previous prime number is 7481
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
sixty-six million eight hundred eighty-seven thousand six hundred twenty-one
Scientific notation
6.6887621 × 10^7
Engineering notation
6.6887621 × 10^6
Prime Factorization
7481 × 8941
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66887621
Product of the distinct prime numbers
The prime factorization of 66887621 is 7481 × 8941.
Since it has a total of 2 prime factors.
5 , 1 , 37 , 54 , 15 , 227 , 5244 , 5378 , 90008 , 68799 , 840605 , 985045 , 2973298 , 8947078 , 15345529 , 4945118 , 104346330 , 345697718 , 816117391 , 6728346488
n×2
133775242
n×3
200662863
n×4
267550484
n×5
334438105
n÷2
33443810.5
n÷3
22295873.666667
n÷3
16721905.25
n÷5
13377524.2
n2
4473953843039641
n3
2.9925212902473E+23
n4
2.0016262989649E+31
n5
1.338840212688E+39
2 √n
8178.4852509496
3 √n
405.92760201305
4 √n
90.434978028137
5 √n
36.734078515894
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
-66887620
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 66887621 can be divided by 4 positive divisors.
The sum of these divisors (counting 66887621) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111111001001111111000101
3
Ternary
11122212020120022
4
Quaternary
3333021333011
5
Quinary
114110400441
6
Senary
10345344525
8
Octal
377117705
10
Decimal
66887621
12
Duodecimal
1a498145
16
Hexadecimal
3fc9fc5
20
Vigesimal
10i0j11
36
Base36
13tmth
md5
b813415d49e2f25cf51e24cbee8c6ec1
sha1
cb21eda9c9b70d6047fbe1812de9d77345482eae
sha256
fbb4de8d1a85ca42dc398def7bab4fd61541f79d97e7ef0bfe407edaf27fa051
sha512
e23dfaedd99406839dd3b2f4829ac89cd6467b64303a883b4428f9c1bfe2e2426ab3371985b2dda5133fc644ca6c9b147c5df5fd13b31cb2a48f7e284ca5d34c
ripemd-160
432427e3d6e73ed683661c8a894fcdfacc02ea75
Diameter
133775242
Circumference
420267317.4994
Area
1.4055340525793E+16
Volume
1.2535043868203E+24
Surface area
5.6221362103173E+16
Circumference
420267317.4994
Perimeter
267550484
Area
4473953843039641
Diagonal
94593380.773071
Surface area
26843723058237846
Volume
2.9925212902473E+23
Space diagonal
115852757.96941
Perimeter
200662863
Area
1.9372788417157E+15
Altitude
57926378.984705
Surface area
1.9372788417157E+15
Volume
3.526720161965E+22
Height
31531126.924357