1686906921 is an odd 10-digits composite number following 1686906920
and preceding 1686906922 . In scientific notation, it is written as 1.686906921 × 10^9.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 954008064 positive integers (up to 1686906921) that are relatively prime to 1686906921.
1686906921 has 8 divisors, whose sum is 1785456904
The reverse of 1686906921 is 1296096861
Previous prime number is 97
Is Prime? no Number parity odd Number length 10 Sum of Digits 48 Digital Root 3
Name
one billion six hundred eighty-six million nine hundred six thousand nine hundred twenty-one
Scientific notation
1.686906921 × 10^9
Engineering notation
1.686906921 × 10^9
Prime Factorization
21 × 97 × 828133
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1686906921 Product of the distinct prime numbers
The prime factorization of 1686906921 is 21 × 97 × 828133.
Since it has a total of 3 prime factors.
10 , 5 , 80 , 56 , 589 , 613 , 5360 , 9479 , 65694 , 84266 , 759405 , 661646 , 7567474 , 3688915 , 74268305 , 166012 , 138100522 , 201656522 , 267259896 , 8411428974
n×2
3373813842
n×3
5060720763
n×4
6747627684
n×5
8434534605
n÷2
843453460.5
n÷3
562302307
n÷3
421726730.25
n÷5
337381384.2
n2
2845654960117700241
n3
4.8003550470005E+27
n4
8.0977521520425E+36
n5
1.3660154149823E+46
2 √n41071.972450809
3 √n1190.4112979328
4 √n202.66221268606
5 √n70.051626591081
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
-1686906920 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 1686906921 can be divided by 8 positive divisors.
The sum of these divisors (counting 1686906921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100100100011000010100000101001
3
Ternary
11100120012202021010
4
Quaternary
1210203002200221
5
Quinary
11423322010141
6
Senary
435220134133
8
Octal
14443024051
10
Decimal
1686906921
12
Duodecimal
3b0b37349
16
Hexadecimal
648c2829
20
Vigesimal
16733761
36
Base36
rwc9pl
md5
999e769a0b29bbfad183f290f90625da
sha1
e34822e3bc5c09fc7791ed62ffd5e1af4ce840e0
sha256
fd8e505e89078e5822176baf1084dcc7363e40ea6453fd077af2a9224989fab6
sha512
ffa89fb7cd59d66d41ca8d842764ac5512e7cec004a2af22641de3bd046dedffe78f958a78679204985a8b28c3218ee18fc5c3277153df6b4113d332af77732c
ripemd-160
7c706a869456d15a9065c818892afd6571a545d4
Diameter
3373813842
Circumference
10599148780.607
Area
8.9398887173571E+18
Volume
2.0107680200373E+28
Surface area
3.5759554869428E+19
Circumference
10599148780.607
Perimeter
6747627684
Area
2845654960117700241
Diagonal
2385646646.1392
Surface area
1.7073929760706E+19
Volume
4.8003550470005E+27
Space diagonal
2921808494.8116
Perimeter
5060720763
Area
1.2322047429336E+18
Altitude
1460904247.4058
Surface area
1.2322047429336E+18
Volume
5.6572726763952E+26
Height
795215548.71308