686642445 is an odd 9-digits composite number following 686642444
and preceding 686642446 . In scientific notation, it is written as 6.86642445 × 10^8.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 365974656 positive integers (up to 686642445) that are relatively prime to 686642445.
686642445 has 8 divisors, whose sum is 702351000
The reverse of 686642445 is 544246686
Previous prime number is 1949
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 45
Digital Root 9
Name
six hundred eighty-six million six hundred forty-two thousand four hundred forty-five
Scientific notation
6.86642445 × 10^8
Engineering notation
6.86642445 × 10^6
Prime Factorization
45 × 1949 × 7829
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
686642445
Product of the distinct prime numbers
The prime factorization of 686642445 is 45 × 1949 × 7829.
Since it has a total of 3 prime factors.
10 , 7 , 81 , 8 , 17 , 247 , 5213 , 6652 , 92973 , 92780 , 252521 , 48613 , 2258493 , 5913448 , 555279 , 3377134 , 603814269 , 150562687 , 9571124703 , 3326035129
n×2
1373284890
n×3
2059927335
n×4
2746569780
n×5
3433212225
n÷2
343321222.5
n÷3
228880815
n÷3
171660611.25
n÷5
137328489
n2
471477847275578025
n3
3.2373670181664E+26
n4
2.2229136047161E+35
n5
1.526346832566E+44
2 √n
26203.863169388
3 √n
882.21996534507
4 √n
161.87607349262
5 √n
58.525634289204
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-686642444
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 686642445 can be divided by 8 positive divisors.
The sum of these divisors (counting 686642445) is 1, the average is 0.125.
Base
System
Value
2
Binary
101000111011010101010100001101
3
Ternary
1202212001001100200
4
Quaternary
220323111110031
5
Quinary
2401240024240
6
Senary
152045044113
8
Octal
5073252415
10
Decimal
686642445
12
Duodecimal
171b56639
16
Hexadecimal
28ed550d
20
Vigesimal
aeba625
36
Base36
bct4p9
md5
202f80100ec7cb480f56c01832979740
sha1
d40edac2ffe5594157d2468be7685a3de8bf9c35
sha256
a391cd1c4c6a6c0556213d0ca77959b83cdf942bcc7b173725a71bb69e8b4238
sha512
55c32e5b7c46fd281129b31b1dea9516cbb63e5ae48d100d49e27aa520cfc7bcfab9394a9d4cc16d23d0f039ad44e5c8a4bdf581945aef60ea36dd6c0e1162de
ripemd-160
edc43787b755978224d0ee4307f1bebe6e1e3245
Diameter
1373284890
Circumference
4314301721.7099
Area
1.4811913413313E+18
Volume
1.3560651254994E+27
Surface area
5.9247653653251E+18
Circumference
4314301721.7099
Perimeter
2746569780
Area
471477847275578025
Diagonal
971059058.22002
Surface area
2828867083653468150
Volume
3.2373670181664E+26
Space diagonal
1189299601.3733
Perimeter
2059927335
Area
2.0415589653113E+17
Altitude
594649800.68666
Surface area
2.0415589653113E+17
Volume
3.8152736195586E+25
Height
323686352.74001