685656139 is an odd 9-digits composite number following 685656138
and preceding 685656140 . In scientific notation, it is written as 6.85656139 × 10^8.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 571821120 positive integers (up to 685656139) that are relatively prime to 685656139.
685656139 has 8 divisors, whose sum is 804785888
The reverse of 685656139 is 931656586
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
six hundred eighty-five million six hundred fifty-six thousand one hundred thirty-nine
Scientific notation
6.85656139 × 10^8
Engineering notation
6.85656139 × 10^6
Prime Factorization
7 × 37 × 2647321
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
685656139
Product of the distinct prime numbers
The prime factorization of 685656139 is 7 × 37 × 2647321.
Since it has a total of 3 prime factors.
10 , 6 , 80 , 35 , 203 , 221 , 6096 , 8786 , 39314 , 15525 , 132063 , 533238 , 1670214 , 4675944 , 65509660 , 26870203 , 697985229 , 714658872 , 5393067148 , 4574871026
n×2
1371312278
n×3
2056968417
n×4
2742624556
n×5
3428280695
n÷2
342828069.5
n÷3
228552046.33333
n÷3
171414034.75
n÷5
137131227.8
n2
470124340948387321
n3
3.2234364046459E+26
n4
2.2101689595216E+35
n5
1.5154159153232E+44
2 √n
26185.036547616
3 √n
881.79735053191
4 √n
161.81791170206
5 √n
58.508811158119
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
-685656138
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 685656139 can be divided by 8 positive divisors.
The sum of these divisors (counting 685656139) is 1, the average is 0.125.
Base
System
Value
2
Binary
101000110111100100100001001011
3
Ternary
1202210011221101211
4
Quaternary
220313210201023
5
Quinary
2401011444024
6
Senary
152011553551
8
Octal
5067444113
10
Decimal
685656139
12
Duodecimal
17175b8b7
16
Hexadecimal
28de484b
20
Vigesimal
ae5706j
36
Base36
bc7znv
md5
522f797265f1ddcacda5f1cca2c9ab80
sha1
c87a95307031bc4fb4f449f40902b202e238410a
sha256
fbb86d1cdf7c2518ee8ae4a50d8bd75f1bc21d073cf77b59155a34a164cb2567
sha512
4ae16ea8e60731644fc267e9e1a5a1e3894c973ae274062bb4bc462b88eab863bcb0efdd738a1f6ad0ecb73bc46f647b9428e8ee23a3dc03771bf81709cf589e
ripemd-160
33151ce7a14802148cdd41108e309bddcdae01d2
Diameter
1371312278
Circumference
4308104578.3423
Area
1.4769391757972E+18
Volume
1.3502298837533E+27
Surface area
5.9077567031888E+18
Circumference
4308104578.3423
Perimeter
2742624556
Area
470124340948387321
Diagonal
969664210.89817
Surface area
2820746045690323926
Volume
3.2234364046459E+26
Space diagonal
1187591269.2695
Perimeter
2056968417
Area
2.0356981109936E+17
Altitude
593795634.63475
Surface area
2.0356981109936E+17
Volume
3.7988562340812E+25
Height
323221403.63272