66409839 is an odd 8-digits composite number following 66409838
and preceding 66409840 . In scientific notation, it is written as 6.6409839 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 44273220 positive integers (up to 66409839) that are relatively prime to 66409839.
66409839 has 4 divisors, whose sum is 73788720
The reverse of 66409839 is 93890466
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
sixty-six million four hundred nine thousand eight hundred thirty-nine
Scientific notation
6.6409839 × 10^7
Engineering notation
6.6409839 × 10^6
Prime Factorization
9 × 7378871
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66409839
Product of the distinct prime numbers
The prime factorization of 66409839 is 9 × 7378871.
Since it has a total of 2 prime factors.
1 , 10 , 89 , 73 , 816 , 252 , 509 , 8324 , 43643 , 85931 , 163165 , 772876 , 899571 , 359906 , 57474649 , 71843804 , 4203705 , 754137959 , 7220137551 , 8661900882
n×2
132819678
n×3
199229517
n×4
265639356
n×5
332049195
n÷2
33204919.5
n÷3
22136613
n÷3
16602459.75
n÷5
13281967.8
n2
4410266716005921
n3
2.9288510255701E+23
n4
1.945045250631E+31
n5
1.2917014194212E+39
2 √n
8149.2232145156
3 √n
404.95877037995
4 √n
90.273048106927
5 √n
36.681449213165
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
-66409838
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 66409839 can be divided by 4 positive divisors.
The sum of these divisors (counting 66409839) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101010101010101101111
3
Ternary
11121221222011200
4
Quaternary
3331111111233
5
Quinary
114000103324
6
Senary
10331220543
8
Octal
375252557
10
Decimal
66409839
12
Duodecimal
1a2a7753
16
Hexadecimal
3f5556f
20
Vigesimal
10f14bj
36
Base36
13je5r
md5
dd6f826b05a6869ac2b270cb883b668a
sha1
cf4347c764c499451dd527841cf7afbf5923c7e7
sha256
6fb4e20e6bc59ca893630754c5696188de75fe48ae57d62cf8e30f747b29ea0c
sha512
777583c6a5d7c4cb001000902a63bf2e5e5b15423e9e968a8f6028059d68637b4bae65f60a8f00c783e285ad95605200414b391a31ec556883242a4d7286a27f
ripemd-160
771a724771d2febb48ee46187248970d464b7c8d
Diameter
132819678
Circumference
417265324.65696
Area
1.3855261515376E+16
Volume
1.2268342487187E+24
Surface area
5.5421046061503E+16
Circumference
417265324.65696
Perimeter
265639356
Area
4410266716005921
Diagonal
93917694.988814
Surface area
26461600296035526
Volume
2.9288510255701E+23
Space diagonal
115025215.27047
Perimeter
199229517
Area
1.909701506763E+15
Altitude
57512607.635235
Surface area
1.909701506763E+15
Volume
3.451684035443E+22
Height
31305898.329605