64690809 is an odd 8-digits composite number following 64690808
and preceding 64690810 . In scientific notation, it is written as 6.4690809 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 42166800 positive integers (up to 64690809) that are relatively prime to 64690809.
64690809 has 16 divisors, whose sum is 88197120
The reverse of 64690809 is 90809646
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-four million six hundred ninety thousand eight hundred nine
Scientific notation
6.4690809 × 10^7
Engineering notation
6.4690809 × 10^6
Prime Factorization
3 × 79 × 107 × 2551
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
64690809
Product of the distinct prime numbers
The prime factorization of 64690809 is 3 × 79 × 107 × 2551.
Since it has a total of 4 prime factors.
7 , 10 , 98 , 85 , 843 , 170 , 2742 , 6164 , 26590 , 43286 , 212703 , 16110 , 6930794 , 3127915 , 46824951 , 76712310 , 829745575 , 726974280 , 2265826641 , 3429880098
n×2
129381618
n×3
194072427
n×4
258763236
n×5
323454045
n÷2
32345404.5
n÷3
21563603
n÷3
16172702.25
n÷5
12938161.8
n2
4184900769074481
n3
2.7072461633615E+23
n4
1.7513394447E+31
n5
1.1329556551125E+39
2 √n
8043.0596790028
3 √n
401.43403810956
4 √n
89.683106987898
5 √n
36.489550748811
1 , 3 , 79 , 107 , 237 , 321 , 2551 , 7653 , 8453 , 25359 , 201529 , 272957 , 604587 , 818871 , 21563603 , 64690809
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
-64690808
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 64690809 can be divided by 16 positive divisors.
The sum of these divisors (counting 64690809) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11110110110001101001111001
3
Ternary
11111201122002220
4
Quaternary
3312301221321
5
Quinary
113030101214
6
Senary
10230314253
8
Octal
366615171
10
Decimal
64690809
12
Duodecimal
197b8989
16
Hexadecimal
3db1a79
20
Vigesimal
1046709
36
Base36
12ijqx
md5
119cf67c30b3127a47d09bf4eec8111b
sha1
1bb900f3d766c1a94de136e9fc9aa2443dcfa164
sha256
4177b07e8782d680f9d0903355f8527a97b2aa38ab43b730d2d5b94645e4d043
sha512
cb603e64594eb1b4f94c5d4e591e34e2ca1f27bc66b4d0b9e3f1b726fe2dff81cbec0f2e3e0e4cc642721e33ec3d5a47578292d42f0a8e1a1a2cd6775fbaa205
ripemd-160
7241978eefabc92150b8b0e9bcc7061dfc06f1df
Diameter
129381618
Circumference
406464340.61836
Area
1.3147253512127E+16
Volume
1.1340086211034E+24
Surface area
5.2589014048507E+16
Circumference
406464340.61836
Perimeter
258763236
Area
4184900769074481
Diagonal
91486619.448687
Surface area
25109404614446886
Volume
2.7072461633615E+23
Space diagonal
112047767.97073
Perimeter
194072427
Area
1.8121151891678E+15
Altitude
56023883.985367
Surface area
1.8121151891678E+15
Volume
3.190520200757E+22
Height
30495539.816229