66778980 is an even 8-digits composite number following 66778979
and preceding 66778981 . In scientific notation, it is written as 6.6778980 × 10^7.
The sum of its digits is 51. It has a total of 4 prime factors and 12 positive divisors.
There are 17807712 positive integers (up to 66778980) that are relatively prime to 66778980.
66778980 has 12 divisors, whose sum is 124654208
The reverse of 66778980 is 08987766
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 51
Digital Root 6
Name
sixty-six million seven hundred seventy-eight thousand nine hundred eighty
Scientific notation
6.6778980 × 10^7
Engineering notation
6.6778980 × 10^6
Prime Factorization
2 × 2 × 15 × 1112983
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
33389490
Product of the distinct prime numbers
The prime factorization of 66778980 is 2 × 2 × 15 × 1112983.
Since it has a total of 4 prime factors.
7 , 7 , 19 , 62 , 837 , 155 , 4487 , 7192 , 61255 , 93976 , 856585 , 931702 , 7747585 , 2705262 , 27258220 , 3155621 , 268840201 , 336639559 , 5256539491 , 1877418123
n×2
133557960
n×3
200336940
n×4
267115920
n×5
333894900
n÷2
33389490
n÷3
22259660
n÷3
16694745
n÷5
13355796
n2
4459432169840400
n3
2.9779633168113E+23
n4
1.9886535277407E+31
n5
1.3280025415593E+39
2 √n
8171.8406739241
3 √n
405.70770941343
4 √n
90.398233798698
5 √n
36.722137824013
1 , 2 , 4 , 15 , 30 , 60 , 1112983 , 2225966 , 4451932 , 16694745 , 33389490 , 66778980
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66778979
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66778980 can be divided by 12 positive divisors.
The sum of these divisors (counting 66778980) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11111110101111011101100100
3
Ternary
11122122201112120
4
Quaternary
3332233131210
5
Quinary
114043411410
6
Senary
10343145540
8
Octal
376573544
10
Decimal
66778980
12
Duodecimal
1a4452b0
16
Hexadecimal
3faf764
20
Vigesimal
10h7790
36
Base36
13razo
md5
0287d0606d4a144cdb0ccdf45d1bd800
sha1
dad601b48d408eb4d0f2ef861482f1ade97835e3
sha256
7ad427597dd0c49e08adfd662b9815c6c34a6553e4d94402c547f1f09c40ba29
sha512
9bd74432617bddd039c8d0cdfb4854edb4fd2592bbb5e3ebfb26ed5fc477db0be32d1afd4ad47374e6f8745bffd8b31b3efae2c085bcb6a2cae8b86810c01406
ripemd-160
eb4d09e9a17d27759d7649b30cbad2db8e573bd3
Diameter
133557960
Circumference
419584705.96444
Area
1.4009719343953E+16
Volume
1.2474063571672E+24
Surface area
5.603887737581E+16
Circumference
419584705.96444
Perimeter
267115920
Area
4459432169840400
Diagonal
94439739.197442
Surface area
26756593019042400
Volume
2.9779633168113E+23
Space diagonal
115664586.23763
Perimeter
200336940
Area
1.9309907727677E+15
Altitude
57832293.118813
Surface area
1.9309907727677E+15
Volume
3.5095634257367E+22
Height
31479913.065814