66888979 is an odd 8-digits composite number following 66888978
and preceding 66888980 . In scientific notation, it is written as 6.6888979 × 10^7.
The sum of its digits is 61. It has a total of 2 prime factors and 4 positive divisors.
There are 64731240 positive integers (up to 66888979) that are relatively prime to 66888979.
66888979 has 4 divisors, whose sum is 69046720
The reverse of 66888979 is 97988866
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 61
Digital Root 7
Name
sixty-six million eight hundred eighty-eight thousand nine hundred seventy-nine
Scientific notation
6.6888979 × 10^7
Engineering notation
6.6888979 × 10^6
Prime Factorization
31 × 2157709
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66888979
Product of the distinct prime numbers
The prime factorization of 66888979 is 31 × 2157709.
Since it has a total of 2 prime factors.
8 , 7 , 23 , 21 , 789 , 441 , 3606 , 3652 , 2970 , 94386 , 829385 , 731730 , 3961091 , 1215448 , 36437160 , 79894230 , 365077050 , 390398698 , 3887157114 , 9852869325
n×2
133777958
n×3
200666937
n×4
267555916
n×5
334444895
n÷2
33444489.5
n÷3
22296326.333333
n÷3
16722244.75
n÷5
13377795.8
n2
4474135511662441
n3
2.9927035628274E+23
n4
2.0017888576719E+31
n5
1.3389761286325E+39
2 √n
8178.5682732371
3 √n
405.93034913798
4 √n
90.435437043435
5 √n
36.734227674954
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66888978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66888979 can be divided by 4 positive divisors.
The sum of these divisors (counting 66888979) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111111001010010100010011
3
Ternary
11122212022102121
4
Quaternary
3333022110103
5
Quinary
114110421404
6
Senary
10345355111
8
Octal
377122423
10
Decimal
66888979
12
Duodecimal
1a498a97
16
Hexadecimal
3fca513
20
Vigesimal
10i128j
36
Base36
13tnv7
md5
153adafb48e27ec7384e902a6ecb9000
sha1
f0a094d1144e03febfdc3b0270accb451e59dbee
sha256
f786bb4a737d93014db4ff80fb3c32b870e14b9bd5d1c542f97690f25c19b73c
sha512
5b525b57379f91eda8a004aa7206ee74af4758cf5d8afccc460567f4cf9af428368ec8cbd6359a31d556a9fb0a847fe507193f5b1c59346b1c8eb426308795bd
ripemd-160
f3baf9b5c7e05b16a668631bcb7139cdeea9e48d
Diameter
133777958
Circumference
420275850.06504
Area
1.4055911254604E+16
Volume
1.2535807369801E+24
Surface area
5.6223645018416E+16
Circumference
420275850.06504
Perimeter
267555916
Area
4474135511662441
Diagonal
94595301.275089
Surface area
26844813069974646
Volume
2.9927035628274E+23
Space diagonal
115855110.09441
Perimeter
200666937
Area
1.9373575065369E+15
Altitude
57927555.047204
Surface area
1.9373575065369E+15
Volume
3.5269349722607E+22
Height
31531767.091696