21693638 is an even 8-digits composite number following 21693637
and preceding 21693639 . In scientific notation, it is written as 2.1693638 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 10846818 positive integers (up to 21693638) that are relatively prime to 21693638.
21693638 has 4 divisors, whose sum is 32540460
The reverse of 21693638 is 83639612
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million six hundred ninety-three thousand six hundred thirty-eight
Scientific notation
2.1693638 × 10^7
Engineering notation
2.1693638 × 10^6
Prime Factorization
2 × 10846819
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21693638
Product of the distinct prime numbers
The prime factorization of 21693638 is 2 × 10846819.
Since it has a total of 2 prime factors.
1 , 10 , 16 , 11 , 106 , 602 , 5503 , 5481 , 79459 , 34349 , 374181 , 679813 , 9361021 , 8906097 , 74068131 , 51075970 , 450183920 , 142489765 , 3032834143 , 853573286
n×2
43387276
n×3
65080914
n×4
86774552
n×5
108468190
n÷2
10846819
n÷3
7231212.6666667
n÷3
5423409.5
n÷5
4338727.6
n2
470613929675044
n3
1.0209328228128E+22
n4
2.2147747080419E+29
n5
4.8046520767816E+36
2 √n
4657.6429661364
3 √n
278.89718423064
4 √n
68.246926422634
5 √n
29.326921572459
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
-21693637
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 21693638 can be divided by 4 positive divisors.
The sum of these divisors (counting 21693638) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010110000010011000110
3
Ternary
1111211011002002
4
Quaternary
1102300103012
5
Quinary
21023144023
6
Senary
2052545302
8
Octal
122602306
10
Decimal
21693638
12
Duodecimal
7322232
16
Hexadecimal
14b04c6
20
Vigesimal
6fbe1i
36
Base36
cwyx2
md5
53084e83d6829070093488bda405b079
sha1
282d1544395d3362c607ce461cb9832213d8253d
sha256
8d5266e971e484e156529471b318f2192c1cc6cb2677b3b79a5dec70613abbd8
sha512
140a54474afed298e3079a27bdc48e350167af926adc4e16d7db24f7fc4124c9d6982042c608286e250bd3ec878d8c0415fca94793fdb2d908e66f030252c110
ripemd-160
049664c4bc00e9b61c7aa67f405914b2c051bc22
Diameter
43387276
Circumference
136305147.54087
Area
1.4784772641441E+15
Volume
4.2764734079431E+22
Surface area
5.9139090565766E+15
Circumference
136305147.54087
Perimeter
86774552
Area
470613929675044
Diagonal
30679437.076812
Surface area
2823683578050264
Volume
1.0209328228128E+22
Space diagonal
37574483.217007
Perimeter
65080914
Area
2.0378180923671E+14
Altitude
18787241.608503
Surface area
2.0378180923671E+14
Volume
1.2031808702447E+21
Height
10226479.025604