64749891 is an odd 8-digits composite number following 64749890
and preceding 64749892 . In scientific notation, it is written as 6.4749891 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 40894632 positive integers (up to 64749891) that are relatively prime to 64749891.
64749891 has 8 divisors, whose sum is 90877120
The reverse of 64749891 is 19894746
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-four million seven hundred forty-nine thousand eight hundred ninety-one
Scientific notation
6.4749891 × 10^7
Engineering notation
6.4749891 × 10^6
Prime Factorization
3 × 19 × 1135963
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64749891
Product of the distinct prime numbers
The prime factorization of 64749891 is 3 × 19 × 1135963.
Since it has a total of 3 prime factors.
10 , 6 , 83 , 2 , 895 , 22 , 8420 , 3879 , 9692 , 73771 , 689602 , 201223 , 4546090 , 2229747 , 45684391 , 41460068 , 702673066 , 690305236 , 4489284218 , 4597524482
n×2
129499782
n×3
194249673
n×4
258999564
n×5
323749455
n÷2
32374945.5
n÷3
21583297
n÷3
16187472.75
n÷5
12949978.2
n2
4192548384511881
n3
2.7146705090937E+23
n4
1.7577461956473E+31
n5
1.1381387457383E+39
2 √n
8046.7316967822
3 √n
401.55621058649
4 √n
89.703576833827
5 √n
36.496213483499
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
-64749890
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 64749891 can be divided by 8 positive divisors.
The sum of these divisors (counting 64749891) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110111000000000101000011
3
Ternary
11111211122011010
4
Quaternary
3313000011003
5
Quinary
113033444031
6
Senary
10231452003
8
Octal
367000503
10
Decimal
64749891
12
Duodecimal
19827003
16
Hexadecimal
3dc0143
20
Vigesimal
104deeb
36
Base36
12jtc3
md5
f173927602fadf3cd7db5eb267ce69f8
sha1
f7b85214d1f09848464720414c3a5e799ffcc2dd
sha256
072ab87997cc3c255fecd8eec8979d21ece47edc89e4fad5a0a0d51e5bb21d03
sha512
ae33dcd733179fec457ec1bc17141447764fe604c948ff77414e68501a2356e015db53440baf23bf75f86d75624e54b9dc9c8cce5fbe0f0c6d1af413cc626a75
ripemd-160
ae892f705be3bcb7bd7a5ca244a2b0318f7933a9
Diameter
129499782
Circumference
406835563.77268
Area
1.3171279204602E+16
Volume
1.1371185237714E+24
Surface area
5.2685116818409E+16
Circumference
406835563.77268
Perimeter
258999564
Area
4192548384511881
Diagonal
91570174.01438
Surface area
25155290307071286
Volume
2.7146705090937E+23
Space diagonal
112150100.99655
Perimeter
194249673
Area
1.8154267037913E+15
Altitude
56075050.498273
Surface area
1.8154267037913E+15
Volume
3.1992698761122E+22
Height
30523391.338127