66969891 is an odd 8-digits composite number following 66969890
and preceding 66969892 . In scientific notation, it is written as 6.6969891 × 10^7.
The sum of its digits is 54. It has a total of 2 prime factors and 4 positive divisors.
There are 44646588 positive integers (up to 66969891) that are relatively prime to 66969891.
66969891 has 4 divisors, whose sum is 74411000
The reverse of 66969891 is 19896966
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9
Name
sixty-six million nine hundred sixty-nine thousand eight hundred ninety-one
Scientific notation
6.6969891 × 10^7
Engineering notation
6.6969891 × 10^6
Prime Factorization
9 × 7441099
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66969891
Product of the distinct prime numbers
The prime factorization of 66969891 is 9 × 7441099.
Since it has a total of 2 prime factors.
1 , 2 , 100 , 47 , 661 , 672 , 2765 , 2589 , 49857 , 97911 , 567504 , 694472 , 3508187 , 1217897 , 41612894 , 11487628 , 422871964 , 358174095 , 686616274 , 429112709
n×2
133939782
n×3
200909673
n×4
267879564
n×5
334849455
n÷2
33484945.5
n÷3
22323297
n÷3
16742472.75
n÷5
13393978.2
n2
4484966300551881
n3
3.0035770428663E+23
n4
2.0114922717086E+31
n5
1.3470941818367E+39
2 √n
8183.5133652973
3 √n
406.09396055464
4 √n
90.462773367266
5 √n
36.743110461845
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
-66969890
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 66969891 can be divided by 4 positive divisors.
The sum of these divisors (counting 66969891) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111111011110000100100011
3
Ternary
11200000102102100
4
Quaternary
3333132010203
5
Quinary
114121014031
6
Senary
10351221443
8
Octal
377360443
10
Decimal
66969891
12
Duodecimal
1a517883
16
Hexadecimal
3fde123
20
Vigesimal
10ib4eb
36
Base36
13vear
md5
cc9cd2c2e3d259e01a8a33d2088e0f98
sha1
6aceceef0e227d075c0dea58dfc574dc5c856ac5
sha256
4eb301ed78124033d1e028c4df5d6c78b9173835c7e78c13811d111ece866c88
sha512
f5bfc646f421b3951a7470178c7153dd3ea797e3b02129f69ef7806e780ec23334e254fd999befe7c17af97c95a0c3562b8350f687466e206931d431997c5d44
ripemd-160
c1648393cc86e01b17a5fd0efa8f714f7be88ff3
Diameter
133939782
Circumference
420784235.15462
Area
1.4089937181412E+16
Volume
1.258135409648E+24
Surface area
5.6359748725646E+16
Circumference
420784235.15462
Perimeter
267879564
Area
4484966300551881
Diagonal
94709728.122848
Surface area
26909797803311286
Volume
3.0035770428663E+23
Space diagonal
115995253.78935
Perimeter
200909673
Area
1.9420473756975E+15
Altitude
57997626.894675
Surface area
1.9420473756975E+15
Volume
3.5397494913784E+22
Height
31569909.374283