64991009 is an odd 8-digits composite number following 64991008
and preceding 64991010 . In scientific notation, it is written as 6.4991009 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 64168260 positive integers (up to 64991009) that are relatively prime to 64991009.
64991009 has 4 divisors, whose sum is 65813760
The reverse of 64991009 is 90019946
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-four million nine hundred ninety-one thousand nine
Scientific notation
6.4991009 × 10^7
Engineering notation
6.4991009 × 10^6
Prime Factorization
79 × 822671
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
64991009
Product of the distinct prime numbers
The prime factorization of 64991009 is 79 × 822671.
Since it has a total of 2 prime factors.
4 , 2 , 64 , 7 , 41 , 572 , 6653 , 9420 , 86554 , 74810 , 403729 , 152067 , 3150827 , 5987060 , 33362058 , 9878633 , 77381739 , 809665471 , 9394971953 , 2100270286
n×2
129982018
n×3
194973027
n×4
259964036
n×5
324955045
n÷2
32495504.5
n÷3
21663669.666667
n÷3
16247752.25
n÷5
12998201.8
n2
4223831250838081
n3
2.745110548377E+23
n4
1.7840750435556E+31
n5
1.159488372124E+39
2 √n
8061.7001308657
3 √n
402.05403636545
4 √n
89.786970830214
5 √n
36.523354271944
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
-64991008
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 64991009 can be divided by 4 positive divisors.
The sum of these divisors (counting 64991009) is 1, the average is 0.25.
Base
System
Value
2
Binary
11110111111010111100100001
3
Ternary
11112021212220102
4
Quaternary
3313322330201
5
Quinary
113114203014
6
Senary
10240552145
8
Octal
367727441
10
Decimal
64991009
12
Duodecimal
19922655
16
Hexadecimal
3dfaf21
20
Vigesimal
1063ha9
36
Base36
12ozdt
md5
b8c50840851b6383c38bf1533610695f
sha1
ad6fff3166a7a69d3f2cc8d8180011495fe8b00e
sha256
d1650c5c2592f975ea723e29e5ed947ca0c40012ac31282312cc71e6fee24ce0
sha512
769cc08f466697dfcc5dcbe43d3de63ac14360ca0c97a2291c5096b87bae6e603a91ee03f0c425f8ce9c1d64e5be166c37de10b28054e85cd9f200a0eba10d56
ripemd-160
b3b5631b35e09ff17498382ff0de1497580b64ae
Diameter
129982018
Circumference
408350552.84758
Area
1.3269557227636E+16
Volume
1.1498692176097E+24
Surface area
5.3078228910544E+16
Circumference
408350552.84758
Perimeter
259964036
Area
4223831250838081
Diagonal
91911166.360112
Surface area
25342987505028486
Volume
2.745110548377E+23
Space diagonal
112567729.62317
Perimeter
194973027
Area
1.8289725822622E+15
Altitude
56283864.811583
Surface area
1.8289725822622E+15
Volume
3.2351438064402E+22
Height
30637055.453371