21609906 is an even 8-digits composite number following 21609905
and preceding 21609907 . In scientific notation, it is written as 2.1609906 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 7192800 positive integers (up to 21609906) that are relatively prime to 21609906.
21609906 has 16 divisors, whose sum is 43282848
The reverse of 21609906 is 60990612
Previous prime number is 811
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million six hundred nine thousand nine hundred six
Scientific notation
2.1609906 × 10^7
Engineering notation
2.1609906 × 10^6
Prime Factorization
2 × 3 × 811 × 4441
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21609906
Product of the distinct prime numbers
The prime factorization of 21609906 is 2 × 3 × 811 × 4441.
Since it has a total of 4 prime factors.
1 , 4 , 77 , 33 , 966 , 356 , 4367 , 2431 , 9870 , 60205 , 171896 , 53240 , 889343 , 4460464 , 8831822 , 21326579 , 298059714 , 377655674 , 6973909250 , 5819468796
n×2
43219812
n×3
64829718
n×4
86439624
n×5
108049530
n÷2
10804953
n÷3
7203302
n÷3
5402476.5
n÷5
4321981.2
n2
466988037328836
n3
1.0091567589801E+22
n4
2.1807782700824E+29
n5
4.7126413423323E+36
2 √n
4648.6456092071
3 √n
278.53789719442
4 √n
68.18097688657
5 √n
29.30424762719
1 , 2 , 3 , 6 , 811 , 1622 , 2433 , 4441 , 4866 , 8882 , 13323 , 26646 , 3601651 , 7203302 , 10804953 , 21609906
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21609905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21609906 can be divided by 16 positive divisors.
The sum of these divisors (counting 21609906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010011011110110110010
3
Ternary
1111122220012220
4
Quaternary
1102123312302
5
Quinary
21013004111
6
Senary
2051101510
8
Octal
122336662
10
Decimal
21609906
12
Duodecimal
72a1896
16
Hexadecimal
149bdb2
20
Vigesimal
6f14f6
36
Base36
cv6b6
md5
c65671f4dea0edbfc8914b42c479a05d
sha1
ae0475293a3c77d7b83863fee465cbd7d418a257
sha256
924db82d4d5123367a99c75696e3f8982e28439aa0044cd2300bcf8ed9f41dfa
sha512
65843831488f03163efeb3771684edf6dc999dfb3df06cf7298b88da6ab99f796cadbbe8468faecbf32b901b95988e1764fad412ba2690119b41c3a20c662911
ripemd-160
46ac7263a1ab75a463be792defed85ed449134f5
Diameter
43219812
Circumference
135779043.86873
Area
1.4670861873866E+15
Volume
4.2271459471097E+22
Surface area
5.8683447495463E+15
Circumference
135779043.86873
Perimeter
86439624
Area
466988037328836
Diagonal
30561022.146808
Surface area
2801928223973016
Volume
1.0091567589801E+22
Space diagonal
37429455.138788
Perimeter
64829718
Area
2.022117517951E+14
Altitude
18714727.569394
Surface area
2.022117517951E+14
Volume
1.1893026459251E+21
Height
10187007.382269