66438861 is an odd 8-digits composite number following 66438860
and preceding 66438862 . In scientific notation, it is written as 6.6438861 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 44292572 positive integers (up to 66438861) that are relatively prime to 66438861.
66438861 has 4 divisors, whose sum is 88585152
The reverse of 66438861 is 16883466
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-six million four hundred thirty-eight thousand eight hundred sixty-one
Scientific notation
6.6438861 × 10^7
Engineering notation
6.6438861 × 10^6
Prime Factorization
3 × 22146287
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66438861
Product of the distinct prime numbers
The prime factorization of 66438861 is 3 × 22146287.
Since it has a total of 2 prime factors.
1 , 4 , 99 , 67 , 363 , 124 , 1846 , 3176 , 22826 , 76358 , 688151 , 231002 , 7616787 , 9303069 , 3017539 , 56352919 , 752868105 , 316051511 , 919622503 , 8749581191
n×2
132877722
n×3
199316583
n×4
265755444
n×5
332194305
n÷2
33219430.5
n÷3
22146287
n÷3
16609715.25
n÷5
13287772.2
n2
4414122250977321
n3
2.9326925466969E+23
n4
1.9484475246573E+31
n5
1.294526342565E+39
2 √n
8151.0036805292
3 √n
405.01775261308
4 √n
90.282909127526
5 √n
36.684654710999
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
-66438860
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 66438861 can be divided by 4 positive divisors.
The sum of these divisors (counting 66438861) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101011100011011001101
3
Ternary
11122000102222120
4
Quaternary
3331130123031
5
Quinary
114002020421
6
Senary
10332003153
8
Octal
375343315
10
Decimal
66438861
12
Duodecimal
1a3004b9
16
Hexadecimal
3f5c6cd
20
Vigesimal
10f4h31
36
Base36
13k0jx
md5
f6b1a85c7d039004528ef145b96af2c3
sha1
a3ce690ffbd4c85ef7389942a345871e86225128
sha256
046f526fff45c2b7ed1a794ee8465212d964e40f6e56ac1a9d44021d5f53b071
sha512
38a0e1d682abbd61d829fd89cd347c846e0b2754c0a7fa0e1d46287db693775fb34308b0239c0e1282c8864cfc713639c3b597416072cf0952279a4b597f2ffc
ripemd-160
fc87edfbb0890a71744fae28e06c2ba7bce56375
Diameter
132877722
Circumference
417447675.26095
Area
1.3867374035718E+16
Volume
1.2284433813254E+24
Surface area
5.546949614287E+16
Circumference
417447675.26095
Perimeter
265755444
Area
4414122250977321
Diagonal
93958738.294821
Surface area
26484733505863926
Volume
2.9326925466969E+23
Space diagonal
115075482.84901
Perimeter
199316583
Area
1.9113710023783E+15
Altitude
57537741.424503
Surface area
1.9113710023783E+15
Volume
3.4562113115077E+22
Height
31319579.431607