1686985642 is an even 10-digits composite number following 1686985641
and preceding 1686985643 . In scientific notation, it is written as 1.686985642 × 10^9.
The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors.
There are 797286672 positive integers (up to 1686985642) that are relatively prime to 1686985642.
1686985642 has 16 divisors, whose sum is 2669700960
The reverse of 1686985642 is 2465896861
Previous prime number is 443
Is Prime? no
Number parity even
Number length 10
Sum of Digits 55
Digital Root 1
Name
one billion six hundred eighty-six million nine hundred eighty-five thousand six hundred forty-two
Scientific notation
1.686985642 × 10^9
Engineering notation
1.686985642 × 10^9
Prime Factorization
2 × 19 × 443 × 100213
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1686985642
Product of the distinct prime numbers
The prime factorization of 1686985642 is 2 × 19 × 443 × 100213.
Since it has a total of 4 prime factors.
2 , 1 , 39 , 62 , 149 , 665 , 6420 , 9274 , 67395 , 46901 , 126749 , 659210 , 342062 , 2824895 , 74148948 , 71261789 , 747004107 , 392703699 , 8044013908 , 7616250358
n×2
3373971284
n×3
5060956926
n×4
6747942568
n×5
8434928210
n÷2
843492821
n÷3
562328547.33333
n÷3
421746410.5
n÷5
337397128.4
n2
2845920556314152164
n3
4.8010271167746E+27
n4
8.0992638128515E+36
n5
1.3663341763051E+46
2 √n
41072.930769547
3 √n
1190.4298148426
4 √n
202.66457699743
5 √n
70.052280383071
1 , 2 , 19 , 38 , 443 , 886 , 8417 , 16834 , 100213 , 200426 , 1904047 , 3808094 , 44394359 , 88788718 , 843492821 , 1686985642
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
-1686985641
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 1686985642 can be divided by 16 positive divisors.
The sum of these divisors (counting 1686985642) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100100100011010101101110101010
3
Ternary
11100120100202020201
4
Quaternary
1210203111232222
5
Quinary
11423332020032
6
Senary
435221542414
8
Octal
14443255652
10
Decimal
1686985642
12
Duodecimal
3b0b74a0a
16
Hexadecimal
648d5baa
20
Vigesimal
1673d422
36
Base36
rwdyga
md5
8f328e5411effe58adbb0489e4569750
sha1
f1c58b07fb7f59aa508af0ab26634aa18c1eb501
sha256
8606c5416569ddb257e905b361b9669e6f78c9650b783fc2ad40a6d299244ef7
sha512
6af7ed114613eba9831267278f8913def3ff3a5d7f734d17e140e65892bf7f589731ff7bbcb038606d539078ed2a3d5304c00a903d418425e03fc60299a9135e
ripemd-160
747825b21e2a95a5871743fb9ebe043e384233ac
Diameter
3373971284
Circumference
10599643399.237
Area
8.9407231124167E+18
Volume
2.0110495359659E+28
Surface area
3.5762892449667E+19
Circumference
10599643399.237
Perimeter
6747942568
Area
2845920556314152164
Diagonal
2385757974.4451
Surface area
1.7075523337885E+19
Volume
4.8010271167746E+27
Space diagonal
2921944843.5832
Perimeter
5060956926
Area
1.2323197494602E+18
Altitude
1460972421.7916
Surface area
1.2323197494602E+18
Volume
5.6580647182197E+26
Height
795252658.14836