64691391 is an odd 8-digits composite number following 64691390
and preceding 64691392 . In scientific notation, it is written as 6.4691391 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 42456960 positive integers (up to 64691391) that are relatively prime to 64691391.
64691391 has 16 divisors, whose sum is 87607520
The reverse of 64691391 is 19319646
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixty-four million six hundred ninety-one thousand three hundred ninety-one
Scientific notation
6.4691391 × 10^7
Engineering notation
6.4691391 × 10^6
Prime Factorization
3 × 181 × 109 × 1093
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
64691391
Product of the distinct prime numbers
The prime factorization of 64691391 is 3 × 181 × 109 × 1093.
Since it has a total of 4 prime factors.
7 , 5 , 11 , 85 , 673 , 40 , 8663 , 9430 , 37390 , 85440 , 428804 , 184956 , 3231328 , 7374938 , 22987449 , 44726232 , 635261484 , 25147478 , 4683037042 , 8257421258
n×2
129382782
n×3
194074173
n×4
258765564
n×5
323456955
n÷2
32345695.5
n÷3
21563797
n÷3
16172847.75
n÷5
12938278.2
n2
4184976069514881
n3
2.7073192323863E+23
n4
1.7514024702412E+31
n5
1.1330066200074E+39
2 √n
8043.0958591826
3 √n
401.43524195863
4 √n
89.683308698902
5 √n
36.489616405254
1 , 3 , 109 , 181 , 327 , 543 , 1093 , 3279 , 19729 , 59187 , 119137 , 197833 , 357411 , 593499 , 21563797 , 64691391
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
-64691390
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 64691391 can be divided by 16 positive divisors.
The sum of these divisors (counting 64691391) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11110110110001110010111111
3
Ternary
11111201122220110
4
Quaternary
3312301302333
5
Quinary
113030111031
6
Senary
10230321103
8
Octal
366616277
10
Decimal
64691391
12
Duodecimal
197b9193
16
Hexadecimal
3db1cbf
20
Vigesimal
104689b
36
Base36
12ik73
md5
22ccd08c3bd10070cc17b0e0d779c09f
sha1
dc3bf60b219f9b539e063db0801caa1e541239a5
sha256
2645f625be7bb0448863c93b8fb321e84d8739618fbf1c197c316036738d25df
sha512
eabb92a396430eda18e3b56d9b069a75c26d9fdfb7f3eff6758b92f5f974d9724096709b8f2101d17a82282d5e9ba1811b072f0a77d184762ccb46aff3ea94e7
ripemd-160
c33907f0442a7ff1b104ba2b1b11d56e4f9ee189
Diameter
129382782
Circumference
406467997.43221
Area
1.3147490075437E+16
Volume
1.134039228185E+24
Surface area
5.2589960301748E+16
Circumference
406467997.43221
Perimeter
258765564
Area
4184976069514881
Diagonal
91487442.520981
Surface area
25109856417089286
Volume
2.7073192323863E+23
Space diagonal
112048776.0243
Perimeter
194074173
Area
1.8121477952149E+15
Altitude
56024388.012152
Surface area
1.8121477952149E+15
Volume
3.1906063134285E+22
Height
30495814.17366