66778839 is an odd 8-digits composite number following 66778838
and preceding 66778840 . In scientific notation, it is written as 6.6778839 × 10^7.
The sum of its digits is 54. It has a total of 4 prime factors and 12 positive divisors.
There are 41900352 positive integers (up to 66778839) that are relatively prime to 66778839.
66778839 has 12 divisors, whose sum is 102132576
The reverse of 66778839 is 93887766
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9
Name
sixty-six million seven hundred seventy-eight thousand eight hundred thirty-nine
Scientific notation
6.6778839 × 10^7
Engineering notation
6.6778839 × 10^6
Prime Factorization
3 × 3 × 17 × 436463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
22259613
Product of the distinct prime numbers
The prime factorization of 66778839 is 3 × 3 × 17 × 436463.
Since it has a total of 4 prime factors.
4 , 6 , 10 , 53 , 982 , 405 , 3202 , 7282 , 21150 , 79590 , 562205 , 208371 , 6617722 , 4095275 , 46148744 , 78214127 , 829944047 , 732121265 , 8524344161 , 2614649134
n×2
133557678
n×3
200336517
n×4
267115356
n×5
333894195
n÷2
33389419.5
n÷3
22259613
n÷3
16694709.75
n÷5
13355767.8
n2
4459413338187921
n3
2.977944453453E+23
n4
1.9886367320808E+31
n5
1.3279885216111E+39
2 √n
8171.8320467322
3 √n
405.70742387035
4 √n
90.398186080984
5 √n
36.722122316661
1 , 3 , 9 , 17 , 51 , 153 , 436463 , 1309389 , 3928167 , 7419871 , 22259613 , 66778839
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66778838
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66778839 can be divided by 12 positive divisors.
The sum of these divisors (counting 66778839) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11111110101111011011010111
3
Ternary
11122122201100100
4
Quaternary
3332233123113
5
Quinary
114043410324
6
Senary
10343145143
8
Octal
376573327
10
Decimal
66778839
12
Duodecimal
1a4451b3
16
Hexadecimal
3faf6d7
20
Vigesimal
10h771j
36
Base36
13ravr
md5
e05d7cfe97a80634cd5eb76df66af74e
sha1
69a4870a2afd0885ff5bb5e9f0789ad09c1ed0ec
sha256
f63bf79ee7e470ee832469dee3b910a43073d2ab3a3e955d54c59333e4b39c9b
sha512
874bd876917696d6a88698e8152d8641fa8a3e2cff4cfb89bc491bd582b6bafead7770571cfcd9f81e9b4270a7f7e0a133c3580679be4cc72054903a2a9bb239
ripemd-160
908a7f99cf9eb03f5fb5530d268c9882096f71b7
Diameter
133557678
Circumference
419583820.03531
Area
1.4009660182572E+16
Volume
1.2473984557022E+24
Surface area
5.6038640730286E+16
Circumference
419583820.03531
Perimeter
267115356
Area
4459413338187921
Diagonal
94439539.793329
Surface area
26756480029127526
Volume
2.977944453453E+23
Space diagonal
115664342.01846
Perimeter
200336517
Area
1.930982618423E+15
Altitude
57832171.009231
Surface area
1.930982618423E+15
Volume
3.5095411950558E+22
Height
31479846.597776