66888905 is an odd 8-digits composite number following 66888904
and preceding 66888906 . In scientific notation, it is written as 6.6888905 × 10^7.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 52833456 positive integers (up to 66888905) that are relatively prime to 66888905.
66888905 has 8 divisors, whose sum is 81283200
The reverse of 66888905 is 50988866
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
sixty-six million eight hundred eighty-eight thousand nine hundred five
Scientific notation
6.6888905 × 10^7
Engineering notation
6.6888905 × 10^6
Prime Factorization
5 × 79 × 169339
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66888905
Product of the distinct prime numbers
The prime factorization of 66888905 is 5 × 79 × 169339.
Since it has a total of 3 prime factors.
10 , 4 , 8 , 55 , 220 , 897 , 7333 , 7844 , 6862 , 16576 , 405159 , 95867 , 9398282 , 4056217 , 72131198 , 43681464 , 583737854 , 40458234 , 3071182341 , 8796102438
n×2
133777810
n×3
200666715
n×4
267555620
n×5
334444525
n÷2
33444452.5
n÷3
22296301.666667
n÷3
16722226.25
n÷5
13377781
n2
4474125612099025
n3
2.9926936302576E+23
n4
2.001779999284E+31
n5
1.3389687220301E+39
2 √n
8178.5637492166
3 √n
405.93019944288
4 √n
90.435412030999
5 √n
36.734219547056
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
-66888904
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 66888905 can be divided by 8 positive divisors.
The sum of these divisors (counting 66888905) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111001010010011001001
3
Ternary
11122212022022212
4
Quaternary
3333022103021
5
Quinary
114110421110
6
Senary
10345354505
8
Octal
377122311
10
Decimal
66888905
12
Duodecimal
1a498a35
16
Hexadecimal
3fca4c9
20
Vigesimal
10i1255
36
Base36
13tnt5
md5
2c1d78e348b409b060cfe935b0de21e8
sha1
fd20774c3b2bcb84af5eb1a407f38817ac5d2ef4
sha256
2d86c2298f85c8314156bc884447d2b21dc331106ed3ead5a02fd7fcb8d14935
sha512
3be26e1bb16607c2d613a13d3971622350191a00f62f9721daa0d5a464ee85c4790b840d48a9a16cba04415160eb752c0a09319a84b0e5dd249fbdc17df39481
ripemd-160
3194234ba7301cc5daff376993b60c974c500452
Diameter
133777810
Circumference
420275385.10933
Area
1.4055880154208E+16
Volume
1.253576576435E+24
Surface area
5.6223520616833E+16
Circumference
420275385.10933
Perimeter
267555620
Area
4474125612099025
Diagonal
94595196.623286
Surface area
26844753672594150
Volume
2.9926936302576E+23
Space diagonal
115854981.92265
Perimeter
200666715
Area
1.9373532199002E+15
Altitude
57927490.961324
Surface area
1.9373532199002E+15
Volume
3.5269232666149E+22
Height
31531732.207762