66814891 is an odd 8-digits composite number following 66814890
and preceding 66814892 . In scientific notation, it is written as 6.6814891 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 56068320 positive integers (up to 66814891) that are relatively prime to 66814891.
66814891 has 8 divisors, whose sum is 78495984
The reverse of 66814891 is 19841866
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-six million eight hundred fourteen thousand eight hundred ninety-one
Scientific notation
6.6814891 × 10^7
Engineering notation
6.6814891 × 10^6
Prime Factorization
11 × 13 × 467237
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66814891
Product of the distinct prime numbers
The prime factorization of 66814891 is 11 × 13 × 467237.
Since it has a total of 3 prime factors.
8 , 8 , 83 , 20 , 626 , 537 , 2253 , 7199 , 20341 , 54493 , 994182 , 967776 , 3395612 , 2214175 , 47305123 , 20213229 , 848375135 , 708007833 , 4049837128 , 3925124791
n×2
133629782
n×3
200444673
n×4
267259564
n×5
334074455
n÷2
33407445.5
n÷3
22271630.333333
n÷3
16703722.75
n÷5
13362978.2
n2
4464229659341881
n3
2.9827701808789E+23
n4
1.9929346451348E+31
n5
1.331577110848E+39
2 √n
8174.0376191941
3 √n
405.78042071036
4 √n
90.41038446547
5 √n
36.726086507026
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
-66814890
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 66814891 can be divided by 8 positive divisors.
The sum of these divisors (counting 66814891) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111110111000001110101011
3
Ternary
11122201112210121
4
Quaternary
3332320032223
5
Quinary
114101034031
6
Senary
10344024111
8
Octal
376701653
10
Decimal
66814891
12
Duodecimal
1a462037
16
Hexadecimal
3fb83ab
20
Vigesimal
10hbh4b
36
Base36
13s2p7
md5
4741cc4e0e0b25fad707b84143abadf4
sha1
4f5be455802eecdb761858ccab7f67c572de4f86
sha256
6e4fa229d9e8a1955740809684b6212b01f478d5caaf2fc902bc2303d986441e
sha512
61bcf9034a15f34118311536921202248399810aea84bc5d7d05766479e03935b6fcaa786502a5cc8f991e25b38ba7869e589b0d584b9122eaf74c70ff6d485d
ripemd-160
a6ea9d7208a5132267b6d484aef82a0a7c921e3e
Diameter
133629782
Circumference
419810341.43201
Area
1.4024791101726E+16
Volume
1.2494198516795E+24
Surface area
5.6099164406904E+16
Circumference
419810341.43201
Perimeter
267259564
Area
4464229659341881
Diagonal
94490525.02068
Surface area
26785377956051286
Volume
2.9827701808789E+23
Space diagonal
115726785.91418
Perimeter
200444673
Area
1.933068146659E+15
Altitude
57863392.957088
Surface area
1.933068146659E+15
Volume
3.5152283693676E+22
Height
31496841.67356