21693691 is an odd 8-digits composite number following 21693690
and preceding 21693692 . In scientific notation, it is written as 2.1693691 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 21672000 positive integers (up to 21693691) that are relatively prime to 21693691.
21693691 has 4 divisors, whose sum is 21715384
The reverse of 21693691 is 19639612
Previous prime number is 1051
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million six hundred ninety-three thousand six hundred ninety-one
Scientific notation
2.1693691 × 10^7
Engineering notation
2.1693691 × 10^6
Prime Factorization
1051 × 20641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21693691
Product of the distinct prime numbers
The prime factorization of 21693691 is 1051 × 20641.
Since it has a total of 2 prime factors.
8 , 1 , 99 , 79 , 874 , 786 , 6287 , 4866 , 55330 , 36548 , 244736 , 995933 , 31549 , 2558414 , 62688819 , 38665279 , 239739741 , 628965768 , 117575252 , 6520056008
n×2
43387382
n×3
65081073
n×4
86774764
n×5
108468455
n÷2
10846845.5
n÷3
7231230.3333333
n÷3
5423422.75
n÷5
4338738.2
n2
470616229203481
n3
1.0209403055925E+22
n4
2.214796351897E+29
n5
4.8047107685982E+36
2 √n
4657.648655706
3 √n
278.89741135619
4 √n
68.246968106327
5 √n
29.326935902239
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21693690
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21693691 can be divided by 4 positive divisors.
The sum of these divisors (counting 21693691) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010110000010011111011
3
Ternary
1111211011011001
4
Quaternary
1102300103323
5
Quinary
21023144231
6
Senary
2052545431
8
Octal
122602373
10
Decimal
21693691
12
Duodecimal
7322277
16
Hexadecimal
14b04fb
20
Vigesimal
6fbe4b
36
Base36
cwyyj
md5
b8e76788b1b9f7aa40fa05dcf2afa87c
sha1
1270a16ad46e2533810308c79a67beee08c2212a
sha256
9f86c1d6ed0253015f2a8d23b13b130c43ac0cee3e846c6a582d711251f65c68
sha512
de97d57ce2ed2bb6e393ff6adeb9d829e1c1477d0df0f8c0eefaad6c8459e01c13b85cc436a831d566f6c60dc8eab90249c4d9137b32f8c64a9fffbd6c02103d
ripemd-160
dcf092c78bf92dc7e9840e836c0d3c99a36d94e4
Diameter
43387382
Circumference
136305480.54969
Area
1.4784844883258E+15
Volume
4.2765047517377E+22
Surface area
5.9139379533031E+15
Circumference
136305480.54969
Perimeter
86774764
Area
470616229203481
Diagonal
30679512.030131
Surface area
2823697375220886
Volume
1.0209403055925E+22
Space diagonal
37574575.0157
Perimeter
65081073
Area
2.0378280496173E+14
Altitude
18787287.50785
Surface area
2.0378280496173E+14
Volume
1.2031896887853E+21
Height
10226504.010044