66888915 is an odd 8-digits composite number following 66888914
and preceding 66888916 . In scientific notation, it is written as 6.6888915 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 35000576 positive integers (up to 66888915) that are relatively prime to 66888915.
66888915 has 8 divisors, whose sum is 72695232
The reverse of 66888915 is 51988866
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
sixty-six million eight hundred eighty-eight thousand nine hundred fifteen
Scientific notation
6.6888915 × 10^7
Engineering notation
6.6888915 × 10^6
Prime Factorization
15 × 53 × 84137
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66888915
Product of the distinct prime numbers
The prime factorization of 66888915 is 15 × 53 × 84137.
Since it has a total of 3 prime factors.
2 , 4 , 100 , 37 , 653 , 462 , 8515 , 4167 , 51555 , 91591 , 226518 , 736444 , 672350 , 4676890 , 48330871 , 50983890 , 337184088 , 62531721 , 3039299268 , 6063645197
n×2
133777830
n×3
200666745
n×4
267555660
n×5
334444575
n÷2
33444457.5
n÷3
22296305
n÷3
16722228.75
n÷5
13377783
n2
4474126949877225
n3
2.9926949724955E+23
n4
2.0017811963618E+31
n5
1.3389697229204E+39
2 √n
8178.5643605709
3 √n
405.93021967196
4 √n
90.435415411059
5 √n
36.734220645421
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
-66888914
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 66888915 can be divided by 8 positive divisors.
The sum of these divisors (counting 66888915) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111001010010011010011
3
Ternary
11122212022100020
4
Quaternary
3333022103103
5
Quinary
114110421130
6
Senary
10345354523
8
Octal
377122323
10
Decimal
66888915
12
Duodecimal
1a498a43
16
Hexadecimal
3fca4d3
20
Vigesimal
10i125f
36
Base36
13tntf
md5
9fc77cd8826f0bf49a0ac103a0111467
sha1
997b358a05273abecb15ba0fbd0da75f75053a85
sha256
2e9f3a1079bac574717422ff569d2c37d95f87a51d737b9ad450b3d209d3a1b9
sha512
614ec1a1dfc4ba19d9133716695e78e66ba90b4fca28a33a70db029a9f34f2eca7b2cd1c1f4c76696f27105822ed21f675dbe961d454d4c32e95e128c18fc9bf
ripemd-160
12c79adba6d598876ff842a01a2d84af3c28d48d
Diameter
133777830
Circumference
420275447.94118
Area
1.4055884356962E+16
Volume
1.2535771386703E+24
Surface area
5.622353742785E+16
Circumference
420275447.94118
Perimeter
267555660
Area
4474126949877225
Diagonal
94595210.765421
Surface area
26844761699263350
Volume
2.9926949724955E+23
Space diagonal
115854999.24316
Perimeter
200666745
Area
1.9373537991751E+15
Altitude
57927499.621578
Surface area
1.9373537991751E+15
Volume
3.5269248484574E+22
Height
31531736.921807