21493486 is an even 8-digits composite number following 21493485
and preceding 21493487 . In scientific notation, it is written as 2.1493486 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 9211488 positive integers (up to 21493486) that are relatively prime to 21493486.
21493486 has 8 divisors, whose sum is 36846000
The reverse of 21493486 is 68439412
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million four hundred ninety-three thousand four hundred eighty-six
Scientific notation
2.1493486 × 10^7
Engineering notation
2.1493486 × 10^6
Prime Factorization
2 × 7 × 1535249
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21493486
Product of the distinct prime numbers
The prime factorization of 21493486 is 2 × 7 × 1535249.
Since it has a total of 3 prime factors.
6 , 10 , 19 , 65 , 318 , 921 , 9365 , 1453 , 95374 , 99538 , 254359 , 266909 , 9797874 , 8670243 , 46268385 , 79522314 , 774705927 , 107192613 , 1777726504 , 9773837445
n×2
42986972
n×3
64480458
n×4
85973944
n×5
107467430
n÷2
10746743
n÷3
7164495.3333333
n÷3
5373371.5
n÷5
4298697.2
n2
461969940432196
n3
9.9293444471002E+21
n4
2.1341622586293E+29
n5
4.5870586627577E+36
2 √n
4636.1067718507
3 √n
278.0368030913
4 √n
68.088962188087
5 √n
29.272604952307
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
-21493485
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 21493486 can be divided by 8 positive divisors.
The sum of these divisors (counting 21493486) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111011011101110
3
Ternary
1111102222112001
4
Quaternary
1101333123232
5
Quinary
21000242421
6
Senary
2044402514
8
Octal
121773356
10
Decimal
21493486
12
Duodecimal
724643a
16
Hexadecimal
147f6ee
20
Vigesimal
6e6de6
36
Base36
csoha
md5
5eb5221aa92f0eff085df20acf1ed711
sha1
f9d2b9728cd61a184548ca1602963c1366d441d0
sha256
e4f9475250feb2226f2283d217df1c47e45ee520c49e8256f080031ceb119a78
sha512
468fcf2b623ad16254e04681335b092f8f8959063b383448dc856e767f8fb9025510a7674c7566fe91b68b0ba9def857f082716e3fdb3a494cd02b075a87a512
ripemd-160
e12d203cd5de26c719cfa61c9c62fefc692879d4
Diameter
42986972
Circumference
135047555.43527
Area
1.4513213710411E+15
Volume
4.1591940759964E+22
Surface area
5.8052854841644E+15
Circumference
135047555.43527
Perimeter
85973944
Area
461969940432196
Diagonal
30396379.403876
Surface area
2771819642593176
Volume
9.9293444471002E+21
Space diagonal
37227809.78377
Perimeter
64480458
Area
2.0003885209953E+14
Altitude
18613904.891885
Surface area
2.0003885209953E+14
Volume
1.1701844652136E+21
Height
10132126.467959