685890642 is an even 9-digits composite number following 685890641
and preceding 685890643 . In scientific notation, it is written as 6.85890642 × 10^8.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 228289152 positive integers (up to 685890642) that are relatively prime to 685890642.
685890642 has 16 divisors, whose sum is 1373827680
The reverse of 685890642 is 246098586
Previous prime number is 673
Is Prime? no
Number parity even
Number length 9
Sum of Digits 48
Digital Root 3
Name
six hundred eighty-five million eight hundred ninety thousand six hundred forty-two
Scientific notation
6.85890642 × 10^8
Engineering notation
6.85890642 × 10^6
Prime Factorization
2 × 3 × 673 × 169859
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
685890642
Product of the distinct prime numbers
The prime factorization of 685890642 is 2 × 3 × 673 × 169859.
Since it has a total of 4 prime factors.
2 , 4 , 99 , 24 , 230 , 149 , 1933 , 4581 , 23351 , 48934 , 515314 , 777922 , 9339016 , 8581459 , 12232661 , 24670358 , 920061345 , 839799629 , 9070475948 , 9400512977
n×2
1371781284
n×3
2057671926
n×4
2743562568
n×5
3429453210
n÷2
342945321
n÷3
228630214
n÷3
171472660.5
n÷5
137178128.4
n2
470445972783172164
n3
3.2267449029856E+26
n4
2.2131941330791E+35
n5
1.5180091448082E+44
2 √n
26189.51397029
3 √n
881.89786765828
4 √n
161.83174586678
5 √n
58.512812760181
1 , 2 , 3 , 6 , 673 , 1346 , 2019 , 4038 , 169859 , 339718 , 509577 , 1019154 , 114315107 , 228630214 , 342945321 , 685890642
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
-685890641
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 685890642 can be divided by 16 positive divisors.
The sum of these divisors (counting 685890642) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000111000011101110001010010
3
Ternary
1202210121212002010
4
Quaternary
220320131301102
5
Quinary
2401042000032
6
Senary
152021003350
8
Octal
5070356122
10
Decimal
685890642
12
Duodecimal
171853556
16
Hexadecimal
28e1dc52
20
Vigesimal
ae6g6c2
36
Base36
bcd0lu
md5
a8339a0067559822498a99676865b64f
sha1
db17318c7c7ae8c6f7297c111e23099f137781d4
sha256
1277338ac5c8a71a1a05ccf864652e36df85c94e78adcde1e27dbe66c3c6485c
sha512
0b20132c9988de31a18475b0e0831f4f1d153df71ce1a6a273adf808d9a43eb688eaf42741b3318dc57d4a0456c7e44fd4bd310a34b983cfc7a1ae58ea8a7470
ripemd-160
cecd0584c904ee776c2668dc8737f67597d6c9bb
Diameter
1371781284
Circumference
4309578004.1464
Area
1.4779496120065E+18
Volume
1.3516157442971E+27
Surface area
5.9117984480261E+18
Circumference
4309578004.1464
Perimeter
2743562568
Area
470445972783172164
Diagonal
969995848.22119
Surface area
2822675836699032984
Volume
3.2267449029856E+26
Space diagonal
1187997440.38
Perimeter
2057671926
Area
2.0370908176915E+17
Altitude
593998720.19002
Surface area
2.0370908176915E+17
Volume
3.8027553367671E+25
Height
323331949.40706