665993889 is an odd 9-digits composite number following 665993888
and preceding 665993890 . In scientific notation, it is written as 6.65993889 × 10^8.
The sum of its digits is 63. It has a total of 4 prime factors and 16 positive divisors.
There are 401508000 positive integers (up to 665993889) that are relatively prime to 665993889.
665993889 has 16 divisors, whose sum is 811514880
The reverse of 665993889 is 988399566
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 63
Digital Root 9
Name
six hundred sixty-five million nine hundred ninety-three thousand eight hundred eighty-nine
Scientific notation
6.65993889 × 10^8
Engineering notation
6.65993889 × 10^6
Prime Factorization
9 × 11 × 191 × 35221
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
665993889
Product of the distinct prime numbers
The prime factorization of 665993889 is 9 × 11 × 191 × 35221.
Since it has a total of 4 prime factors.
5 , 6 , 78 , 33 , 116 , 831 , 3266 , 2019 , 87981 , 80011 , 857443 , 491901 , 1634624 , 5504641 , 64300239 , 26329840 , 331966604 , 308225284 , 7764129354 , 3177000483
n×2
1331987778
n×3
1997981667
n×4
2663975556
n×5
3329969445
n÷2
332996944.5
n÷3
221997963
n÷3
166498472.25
n÷5
133198777.8
n2
443547860185344321
n3
2.9540016436247E+26
n4
1.96734704275E+35
n5
1.3102411080137E+44
2 √n
25806.857402636
3 √n
873.28650311535
4 √n
160.64512878589
5 √n
58.169328293639
1 , 9 , 11 , 99 , 191 , 1719 , 2101 , 18909 , 35221 , 316989 , 387431 , 3486879 , 6727211 , 60544899 , 73999321 , 665993889
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
-665993888
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 665993889 can be divided by 16 positive divisors.
The sum of these divisors (counting 665993889) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111101100100100001010100001
3
Ternary
1201102011222212100
4
Quaternary
213230210022201
5
Quinary
2330443301024
6
Senary
150030321013
8
Octal
4754441241
10
Decimal
665993889
12
Duodecimal
167059169
16
Hexadecimal
27b242a1
20
Vigesimal
a8294e9
36
Base36
b0ik69
md5
cf9bedaff67a8ed9b8db02e6aa3974f8
sha1
124aacee2bfd98fe7175f42953304988eb361f87
sha256
50fbd1105e73e7602162229f1a477d587c5b50febde9899bca657d461079c070
sha512
39373d1a4f6bc1c8f9768f4bdba700c5050ab796fe55cfd664cf982747845ec3a44b01f9d09de16c65309860d905fa5124107232eda6fc783e1ef20aa8369e82
ripemd-160
a2abc5c0edb59ef49af38b9da7c3c27164526869
Diameter
1331987778
Circumference
4184563018.0362
Area
1.3934466990738E+18
Volume
1.2373693149738E+27
Surface area
5.573786796295E+18
Circumference
4184563018.0362
Perimeter
2663975556
Area
443547860185344321
Diagonal
941857590.2814
Surface area
2661287161112065926
Volume
2.9540016436247E+26
Space diagonal
1153535253.2784
Perimeter
1997981667
Area
1.9206185735737E+17
Altitude
576767626.63919
Surface area
1.9206185735737E+17
Volume
3.481324323072E+25
Height
313952530.0938