66908521 is an odd 8-digits composite number following 66908520
and preceding 66908522 . In scientific notation, it is written as 6.6908521 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 65811600 positive integers (up to 66908521) that are relatively prime to 66908521.
66908521 has 4 divisors, whose sum is 68005444
The reverse of 66908521 is 12580966
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
sixty-six million nine hundred eight thousand five hundred twenty-one
Scientific notation
6.6908521 × 10^7
Engineering notation
6.6908521 × 10^6
Prime Factorization
61 × 1096861
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66908521
Product of the distinct prime numbers
The prime factorization of 66908521 is 61 × 1096861.
Since it has a total of 2 prime factors.
5 , 7 , 82 , 21 , 380 , 361 , 4507 , 4880 , 99491 , 43565 , 660668 , 911119 , 1361877 , 9539181 , 14189498 , 29045771 , 648048586 , 397252770 , 3534634812 , 2647610828
n×2
133817042
n×3
200725563
n×4
267634084
n×5
334542605
n÷2
33454260.5
n÷3
22302840.333333
n÷3
16727130.25
n÷5
13381704.2
n2
4476750182407441
n3
2.9953273359136E+23
n4
2.0041292195685E+31
n5
1.3409332197421E+39
2 √n
8179.7628938741
3 √n
405.96987691769
4 √n
90.442041628184
5 √n
36.736373847349
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
-66908520
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 66908521 can be divided by 4 positive divisors.
The sum of these divisors (counting 66908521) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111111001111000101101001
3
Ternary
11122220022020101
4
Quaternary
3333033011221
5
Quinary
114112033041
6
Senary
10350025401
8
Octal
377170551
10
Decimal
66908521
12
Duodecimal
1a4a8261
16
Hexadecimal
3fcf169
20
Vigesimal
10i3b61
36
Base36
13u2y1
md5
212f4d282ae8b76b3bee00c2025dacd9
sha1
1f75f333139b0163598128a25a704f399c021a27
sha256
7ebba365b0e8d30525e05cefb10c28a60404c8153036c6ec62b4a0481a2c8946
sha512
7aa24015a290969361d5c33b69928b167fe94dce220194c6c7ce31ac315afede32a6f2e8adeb556b7ea04ee1303c0102a0046294a42f5b692ab51106e2714391
ripemd-160
7814247c24dc7ee20320dbf96479a7c0bfa3964a
Diameter
133817042
Circumference
420398636.07232
Area
1.4064125485008E+16
Volume
1.2546797804804E+24
Surface area
5.6256501940032E+16
Circumference
420398636.07232
Perimeter
267634084
Area
4476750182407441
Diagonal
94622937.836525
Surface area
26860501094444646
Volume
2.9953273359136E+23
Space diagonal
115888957.83129
Perimeter
200725563
Area
1.9384896921807E+15
Altitude
57944478.915645
Surface area
1.9384896921807E+15
Volume
3.5300271184966E+22
Height
31540979.278842