66888918 is an even 8-digits composite number following 66888917
and preceding 66888919 . In scientific notation, it is written as 6.6888918 × 10^7.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 22272624 positive integers (up to 66888918) that are relatively prime to 66888918.
66888918 has 16 divisors, whose sum is 111600000
The reverse of 66888918 is 81988866
Previous prime number is 1549
Is Prime? no
Number parity even
Number length 8
Sum of Digits 54
Digital Root 9
Name
sixty-six million eight hundred eighty-eight thousand nine hundred eighteen
Scientific notation
6.6888918 × 10^7
Engineering notation
6.6888918 × 10^6
Prime Factorization
2 × 9 × 1549 × 2399
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66888918
Product of the distinct prime numbers
The prime factorization of 66888918 is 2 × 9 × 1549 × 2399.
Since it has a total of 4 prime factors.
1 , 8 , 92 , 86 , 115 , 553 , 1156 , 5590 , 11476 , 53162 , 917298 , 631685 , 6518060 , 4497110 , 39268673 , 58151219 , 579616673 , 442668263 , 2274882881 , 4747583357
n×2
133777836
n×3
200666754
n×4
267555672
n×5
334444590
n÷2
33444459
n÷3
22296306
n÷3
16722229.5
n÷5
13377783.6
n2
4474127351210724
n3
2.9926953751669E+23
n4
2.0017815554852E+31
n5
1.3389700231876E+39
2 √n
8178.5645439771
3 √n
405.93022574068
4 √n
90.435416425077
5 √n
36.734220974931
1 , 2 , 9 , 18 , 1549 , 2399 , 3098 , 4798 , 13941 , 21591 , 27882 , 43182 , 3716051 , 7432102 , 33444459 , 66888918
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
-66888917
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 66888918 can be divided by 16 positive divisors.
The sum of these divisors (counting 66888918) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111001010010011010110
3
Ternary
11122212022100100
4
Quaternary
3333022103112
5
Quinary
114110421133
6
Senary
10345354530
8
Octal
377122326
10
Decimal
66888918
12
Duodecimal
1a498a46
16
Hexadecimal
3fca4d6
20
Vigesimal
10i125i
36
Base36
13tnti
md5
26a5a61ea8ed58092ca3ddaf3ba69ee7
sha1
e68e7598c8eabdb6bcf316ed657e7cac0b68346f
sha256
4ee40833102aa27ebb68118d7e46083656232b76fb13a9cebfd28025bd175899
sha512
7764d6957ce2dc163b87c7a22a4ce9fffed8506bcd03a38793995716372675a2e580c15b05a3aa11dd30264041f0be22ddc05b209d0be1e9d868525bd468201a
ripemd-160
e18d6ac51e596362280f07c73543ca5dc555e18c
Diameter
133777836
Circumference
420275466.79074
Area
1.4055885617789E+16
Volume
1.2535773073409E+24
Surface area
5.6223542471155E+16
Circumference
420275466.79074
Perimeter
267555672
Area
4474127351210724
Diagonal
94595215.008062
Surface area
26844764107264344
Volume
2.9926953751669E+23
Space diagonal
115855004.43931
Perimeter
200666754
Area
1.9373539729576E+15
Altitude
57927502.219654
Surface area
1.9373539729576E+15
Volume
3.5269253230102E+22
Height
31531738.336021