66996890 is an even 8-digits composite number following 66996889
and preceding 66996891 . In scientific notation, it is written as 6.6996890 × 10^7.
The sum of its digits is 53. It has a total of 4 prime factors and 16 positive divisors.
There are 25934160 positive integers (up to 66996890) that are relatively prime to 66996890.
66996890 has 16 divisors, whose sum is 124485120
The reverse of 66996890 is 09869966
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 53
Digital Root 8
Name
sixty-six million nine hundred ninety-six thousand eight hundred ninety
Scientific notation
6.6996890 × 10^7
Engineering notation
6.6996890 × 10^6
Prime Factorization
2 × 5 × 31 × 216119
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66996890
Product of the distinct prime numbers
The prime factorization of 66996890 is 2 × 5 × 31 × 216119.
Since it has a total of 4 prime factors.
6 , 8 , 16 , 51 , 502 , 715 , 4949 , 2157 , 61256 , 5711 , 276788 , 848436 , 3777173 , 1530871 , 16030510 , 52079090 , 807717456 , 82792733 , 9556497729 , 2588187086
n×2
133993780
n×3
200990670
n×4
267987560
n×5
334984450
n÷2
33498445
n÷3
22332296.666667
n÷3
16749222.5
n÷5
13399378
n2
4488583269672100
n3
3.0072111957406E+23
n4
2.014737976878E+31
n5
1.3498117861572E+39
2 √n
8185.1627961819
3 √n
406.14852566146
4 √n
90.471889535821
5 √n
36.746072590911
1 , 2 , 5 , 10 , 31 , 62 , 155 , 310 , 216119 , 432238 , 1080595 , 2161190 , 6699689 , 13399378 , 33498445 , 66996890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66996889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66996890 can be divided by 16 positive divisors.
The sum of these divisors (counting 66996890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111100100101010011010
3
Ternary
11200001210110022
4
Quaternary
3333210222122
5
Quinary
114122400030
6
Senary
10351550442
8
Octal
377445232
10
Decimal
66996890
12
Duodecimal
1a52b422
16
Hexadecimal
3fe4a9a
20
Vigesimal
10iec4a
36
Base36
13vz4q
md5
eff6cee2e94ad3bea10e08b36c9ce030
sha1
8854d808145b4d52c62e848e46114440705d5a96
sha256
3f9e9c34bf0a7dd347057c69c7282c07ffa60f837db2c6c28775785c0a556b78
sha512
90c7409eb3dac2bf3c463e964b63457af6e98a7da4e320cd026be65aaae3869a2757d9e078fa361d6e938935600a7d6c90492eb1d07450b1d03596eb37770632
ripemd-160
f83d5090bc41194b9225ea0a9eb1be66ed9cd53f
Diameter
133993780
Circumference
420953874.87473
Area
1.4101300225028E+16
Volume
1.2596576800442E+24
Surface area
5.6405200900112E+16
Circumference
420953874.87473
Perimeter
267987560
Area
4488583269672100
Diagonal
94747910.474818
Surface area
26931499618032600
Volume
3.0072111957406E+23
Space diagonal
116042017.4291
Perimeter
200990670
Area
1.9436135692689E+15
Altitude
58021008.714552
Surface area
1.9436135692689E+15
Volume
3.5440323816138E+22
Height
31582636.824939