66996881 is an odd 8-digits composite number following 66996880
and preceding 66996882 . In scientific notation, it is written as 6.6996881 × 10^7.
The sum of its digits is 53. It has a total of 4 prime factors and 16 positive divisors.
There are 52786944 positive integers (up to 66996881) that are relatively prime to 66996881.
66996881 has 16 divisors, whose sum is 82963584
The reverse of 66996881 is 18869966
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
sixty-six million nine hundred ninety-six thousand eight hundred eighty-one
Scientific notation
6.6996881 × 10^7
Engineering notation
6.6996881 × 10^6
Prime Factorization
7 × 17 × 43 × 13093
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66996881
Product of the distinct prime numbers
The prime factorization of 66996881 is 7 × 17 × 43 × 13093.
Since it has a total of 4 prime factors.
8 , 9 , 100 , 22 , 321 , 932 , 1378 , 9700 , 62405 , 84777 , 274899 , 832436 , 8875496 , 1523541 , 337717 , 79469906 , 703924570 , 516420492 , 9826970291 , 4268690194
n×2
133993762
n×3
200990643
n×4
267987524
n×5
334984405
n÷2
33498440.5
n÷3
22332293.666667
n÷3
16749220.25
n÷5
13399376.2
n2
4488582063728161
n3
3.0072099838233E+23
n4
2.0147368942822E+31
n5
1.3498108795254E+39
2 √n
8185.1622464066
3 √n
406.14850747486
4 √n
90.471886497445
5 √n
36.746071603657
1 , 7 , 17 , 43 , 119 , 301 , 731 , 5117 , 13093 , 91651 , 222581 , 562999 , 1558067 , 3940993 , 9570983 , 66996881
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
-66996880
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 66996881 can be divided by 16 positive divisors.
The sum of these divisors (counting 66996881) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111100100101010010001
3
Ternary
11200001210102222
4
Quaternary
3333210222101
5
Quinary
114122400011
6
Senary
10351550425
8
Octal
377445221
10
Decimal
66996881
12
Duodecimal
1a52b415
16
Hexadecimal
3fe4a91
20
Vigesimal
10iec41
36
Base36
13vz4h
md5
d96a9ce1efef7412d5564de323f94fd3
sha1
336e96238fd86226d623d0dcc43fb2ca3ad69154
sha256
77e39711194976aa2ea16d80ea1181c049e4628746663b6d4973b1800f7eef1f
sha512
fb45e5a44d4dff13d637c3989bc018f9076dac66e5890999dfa37767d202bd2ab0893d9d7ff2a72f6fb78a1d162a11e09f7d3153da821f47ab2334f346103f1e
ripemd-160
2369fe1ac90387f4684a3229bbc929858c60db07
Diameter
133993762
Circumference
420953818.32606
Area
1.4101296436443E+16
Volume
1.2596571723975E+24
Surface area
5.6405185745773E+16
Circumference
420953818.32606
Perimeter
267987524
Area
4488582063728161
Diagonal
94747897.746896
Surface area
26931492382368966
Volume
3.0072099838233E+23
Space diagonal
116042001.84065
Perimeter
200990643
Area
1.9436130470799E+15
Altitude
58021000.920323
Surface area
1.9436130470799E+15
Volume
3.5440309533556E+22
Height
31582632.582299