21693561 is an odd 8-digits composite number following 21693560
and preceding 21693562 . In scientific notation, it is written as 2.1693561 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 14462372 positive integers (up to 21693561) that are relatively prime to 21693561.
21693561 has 4 divisors, whose sum is 28924752
The reverse of 21693561 is 16539612
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million six hundred ninety-three thousand five hundred sixty-one
Scientific notation
2.1693561 × 10^7
Engineering notation
2.1693561 × 10^6
Prime Factorization
3 × 7231187
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21693561
Product of the distinct prime numbers
The prime factorization of 21693561 is 3 × 7231187.
Since it has a total of 2 prime factors.
10 , 9 , 37 , 9 , 623 , 172 , 7790 , 5859 , 44075 , 37186 , 30133 , 543214 , 8976837 , 8794722 , 9351653 , 5735529 , 535791729 , 419685171 , 1431093714 , 4077563210
n×2
43387122
n×3
65080683
n×4
86774244
n×5
108467805
n÷2
10846780.5
n÷3
7231187
n÷3
5423390.25
n÷5
4338712.2
n2
470610588860721
n3
1.0209219516696E+22
n4
2.2147432634783E+29
n5
4.8045668085607E+36
2 √n
4657.6347001456
3 √n
278.89685425511
4 √n
68.24686586317
5 √n
29.326900753672
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
-21693560
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 21693561 can be divided by 4 positive divisors.
The sum of these divisors (counting 21693561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010110000010001111001
3
Ternary
1111211010222020
4
Quaternary
1102300101321
5
Quinary
21023143221
6
Senary
2052545053
8
Octal
122602171
10
Decimal
21693561
12
Duodecimal
7322189
16
Hexadecimal
14b0479
20
Vigesimal
6fbdi1
36
Base36
cwyux
md5
0b7d34a6f266844a2cb2465461e79326
sha1
10a4df1d27e3348a9bc4ac81854a59a3359f3a65
sha256
a237a22f993db0d700e364f2ffc18829771db95faeb4bff6591ae2725a9302b3
sha512
496616fc54d1aad14a3a443c741d8041e421acfa3f35c659dce4603724b238ac68f04e1befbfd2f779d117cbc6b28587491c74035e24a2d370cfe8f3c62b7cda
ripemd-160
b9d46a104f368492e1c51c1057bfee5ba2b6b453
Diameter
43387122
Circumference
136304663.7356
Area
1.4784667686664E+15
Volume
4.276427871005E+22
Surface area
5.9138670746656E+15
Circumference
136304663.7356
Perimeter
86774244
Area
470610588860721
Diagonal
30679328.182368
Surface area
2823663533164326
Volume
1.0209219516696E+22
Space diagonal
37574349.849095
Perimeter
65080683
Area
2.0378036262167E+14
Altitude
18787174.924547
Surface area
2.0378036262167E+14
Volume
1.2031680584796E+21
Height
10226442.727456