66881805 is an odd 8-digits composite number following 66881804
and preceding 66881806 . In scientific notation, it is written as 6.6881805 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 33792768 positive integers (up to 66881805) that are relatively prime to 66881805.
66881805 has 16 divisors, whose sum is 112643520
The reverse of 66881805 is 50818866
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-six million eight hundred eighty-one thousand eight hundred five
Scientific notation
6.6881805 × 10^7
Engineering notation
6.6881805 × 10^6
Prime Factorization
5 × 3 × 19 × 234673
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66881805
Product of the distinct prime numbers
The prime factorization of 66881805 is 5 × 3 × 19 × 234673.
Since it has a total of 4 prime factors.
5 , 3 , 51 , 35 , 566 , 807 , 566 , 1530 , 53243 , 60540 , 605403 , 395082 , 9016371 , 6428200 , 13661548 , 42930031 , 107419888 , 150361743 , 8985146178 , 7243476088
n×2
133763610
n×3
200645415
n×4
267527220
n×5
334409025
n÷2
33440902.5
n÷3
22293935
n÷3
16720451.25
n÷5
13376361
n2
4473175840058025
n3
2.9917407426547E+23
n4
2.0009302096079E+31
n5
1.338258240976E+39
2 √n
8178.1296761546
3 √n
405.91583629154
4 √n
90.433012092679
5 √n
36.733439674719
1 , 3 , 5 , 15 , 19 , 57 , 95 , 285 , 234673 , 704019 , 1173365 , 3520095 , 4458787 , 13376361 , 22293935 , 66881805
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
-66881804
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 66881805 can be divided by 16 positive divisors.
The sum of these divisors (counting 66881805) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111001000100100001101
3
Ternary
11122211221120220
4
Quaternary
3333020210031
5
Quinary
114110204210
6
Senary
10345301553
8
Octal
377104415
10
Decimal
66881805
12
Duodecimal
1a4948b9
16
Hexadecimal
3fc890d
20
Vigesimal
10i04a5
36
Base36
13tibx
md5
cc53b5026a177832bca6b2658107c507
sha1
9ab56552857678033b9d5387007907f496adc6e3
sha256
a70d4490d26229729728eccdedd7da8900945fda01f55d0aea36215f4150b389
sha512
2492d0d9af15aff3ce2cc8bf553016dc2a6fabf0bd467de88cb99b0f6f36654a9d282abb953da37d583c247aeff766232dc6047310278541be1629ecf433a444
ripemd-160
1f5d7ea145fc36e083624171076cdfe8fbd25292
Diameter
133763610
Circumference
420230774.49365
Area
1.4052896357342E+16
Volume
1.2531774318092E+24
Surface area
5.6211585429367E+16
Circumference
420230774.49365
Perimeter
267527220
Area
4473175840058025
Diagonal
94585155.706993
Surface area
26839055040348150
Volume
2.9917407426547E+23
Space diagonal
115842684.36191
Perimeter
200645415
Area
1.9369419565425E+15
Altitude
57921342.180957
Surface area
1.9369419565425E+15
Volume
3.5258002778054E+22
Height
31528385.235664