64691890 is an even 8-digits composite number following 64691889
and preceding 64691891 . In scientific notation, it is written as 6.4691890 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 25876752 positive integers (up to 64691890) that are relatively prime to 64691890.
64691890 has 8 divisors, whose sum is 116445420
The reverse of 64691890 is 09819646
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-four million six hundred ninety-one thousand eight hundred ninety
Scientific notation
6.4691890 × 10^7
Engineering notation
6.4691890 × 10^6
Prime Factorization
2 × 5 × 6469189
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64691890
Product of the distinct prime numbers
The prime factorization of 64691890 is 2 × 5 × 6469189.
Since it has a total of 3 prime factors.
9 , 4 , 35 , 96 , 145 , 274 , 7461 , 6777 , 15119 , 12574 , 924942 , 288955 , 7271779 , 6251813 , 97273189 , 50350814 , 162368426 , 96670554 , 6509887418 , 933522178
n×2
129383780
n×3
194075670
n×4
258767560
n×5
323459450
n÷2
32345945
n÷3
21563963.333333
n÷3
16172972.5
n÷5
12938378
n2
4185040631772100
n3
2.7073818819613E+23
n4
1.7514565089583E+31
n5
1.1330503181732E+39
2 √n
8043.1268795164
3 √n
401.436274119
4 √n
89.683481642477
5 √n
36.489672697945
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-64691889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 64691890 can be divided by 8 positive divisors.
The sum of these divisors (counting 64691890) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110110110001111010110010
3
Ternary
11111201200120221
4
Quaternary
3312301322302
5
Quinary
113030120030
6
Senary
10230323254
8
Octal
366617262
10
Decimal
64691890
12
Duodecimal
197b952a
16
Hexadecimal
3db1eb2
20
Vigesimal
10469ea
36
Base36
12ikky
md5
e3b1e6d46daa44d3575dc3e9135c34fc
sha1
8a749aa9427d1c5f3c386507a03207b6bccad6fe
sha256
2a34e5800a0d452ed7e06f1cc982d4127dc9e5a3ceb732143708d37a4765f978
sha512
a016baecfb960fb09b2172dceba35e34fb6b8b52744eed4f1edde26b0da1b1b158aab060fe730dbde301efd35816e0acff840902f96bc618ab434232109ecfdd
ripemd-160
45e219625e4ea81588eb1fdebf8200c1a0188842
Diameter
129383780
Circumference
406471132.74168
Area
1.314769290375E+16
Volume
1.1340654707776E+24
Surface area
5.2590771615E+16
Circumference
406471132.74168
Perimeter
258767560
Area
4185040631772100
Diagonal
91488148.213548
Surface area
25110243790632600
Volume
2.7073818819613E+23
Space diagonal
112049640.31766
Perimeter
194075670
Area
1.8121757514924E+15
Altitude
56024820.158828
Surface area
1.8121757514924E+15
Volume
3.1906801466607E+22
Height
30496049.404516