21693894 is an even 8-digits composite number following 21693893
and preceding 21693895 . In scientific notation, it is written as 2.1693894 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 7231296 positive integers (up to 21693894) that are relatively prime to 21693894.
21693894 has 8 divisors, whose sum is 43387800
The reverse of 21693894 is 49839612
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-one million six hundred ninety-three thousand eight hundred ninety-four
Scientific notation
2.1693894 × 10^7
Engineering notation
2.1693894 × 10^6
Prime Factorization
2 × 3 × 3615649
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21693894
Product of the distinct prime numbers
The prime factorization of 21693894 is 2 × 3 × 3615649.
Since it has a total of 3 prime factors.
4 , 3 , 95 , 73 , 454 , 816 , 3818 , 63 , 62052 , 60035 , 543238 , 51300 , 4654964 , 5626661 , 59895170 , 91701979 , 330112035 , 372842461 , 2628385413 , 5884440695
n×2
43387788
n×3
65081682
n×4
86775576
n×5
108469470
n÷2
10846947
n÷3
7231298
n÷3
5423473.5
n÷5
4338778.8
n2
470625036883236
n3
1.0209689663891E+22
n4
2.2148792534135E+29
n5
4.8049355746351E+36
2 √n
4657.6704477668
3 √n
278.8982812865
4 √n
68.24712776203
5 √n
29.326990787742
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
-21693893
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 21693894 can be divided by 8 positive divisors.
The sum of these divisors (counting 21693894) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110000010111000110
3
Ternary
1111211011102120
4
Quaternary
1102300113012
5
Quinary
21023201034
6
Senary
2052550410
8
Octal
122602706
10
Decimal
21693894
12
Duodecimal
7322406
16
Hexadecimal
14b05c6
20
Vigesimal
6fbeee
36
Base36
cwz46
md5
80faa3f4f4b8fbe297d2a460f29deb40
sha1
a356cdefde7cbe0050435067f4bfac06e19922c9
sha256
906ab4716c1b5ef82b8be73b4a930f12ffaca345e77514149c4b69ae83c71b83
sha512
7b08f5de8464722b703a9558a340ef591b0be206659e54bdbc470a24318ba3178b331c51062d3339d97c8fae09a5a0a2b47f7892fe769c9be8156bc5caaa522a
ripemd-160
12185fcaafda27e0ec8729f04f54145593e1b5e2
Diameter
43387788
Circumference
136306756.03631
Area
1.4785121584678E+15
Volume
4.2766248058016E+22
Surface area
5.9140486338712E+15
Circumference
136306756.03631
Perimeter
86775576
Area
470625036883236
Diagonal
30679799.115484
Surface area
2823750221299416
Volume
1.0209689663891E+22
Space diagonal
37574926.622014
Perimeter
65081682
Area
2.0378661879894E+14
Altitude
18787463.311007
Surface area
2.0378661879894E+14
Volume
1.2032234658579E+21
Height
10226599.705161