21861609 is an odd 8-digits composite number following 21861608
and preceding 21861610 . In scientific notation, it is written as 2.1861609 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 10091520 positive integers (up to 21861609) that are relatively prime to 21861609.
21861609 has 32 divisors, whose sum is 36578304
The reverse of 21861609 is 90616812
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million eight hundred sixty-one thousand six hundred nine
Scientific notation
2.1861609 × 10^7
Engineering notation
2.1861609 × 10^6
Prime Factorization
3 × 11 × 323 × 7 × 293
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21861609
Product of the distinct prime numbers
The prime factorization of 21861609 is 3 × 11 × 323 × 7 × 293.
Since it has a total of 5 prime factors.
2 , 8 , 31 , 70 , 14 , 319 , 4887 , 551 , 59275 , 18988 , 75535 , 80686 , 2653874 , 4058647 , 98997584 , 23284389 , 538879058 , 558119931 , 5753340441 , 7052948034
n×2
43723218
n×3
65584827
n×4
87446436
n×5
109308045
n÷2
10930804.5
n÷3
7287203
n÷3
5465402.25
n÷5
4372321.8
n2
477929948068881
n3
1.0448317654072E+22
n4
2.2841703526112E+29
n5
4.9935639138179E+36
2 √n
4675.6399561985
3 √n
279.61515581956
4 √n
68.37865131895
5 √n
29.372196468877
1 , 3 , 7 , 11 , 21 , 33 , 77 , 231 , 293 , 323 , 879 , 969 , 2051 , 2261 , 3223 , 3553 , 6153 , 6783 , 9669 , 10659 , 22561 , 24871 , 67683 , 74613 , 94639 , 283917 , 662473 , 1041029 , 1987419 , 3123087 , 7287203 , 21861609
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21861608
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21861609 can be divided by 32 positive divisors.
The sum of these divisors (counting 21861609) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010011011001010011101001
3
Ternary
1112010200111020
4
Quaternary
1103121103221
5
Quinary
21044032414
6
Senary
2100323053
8
Octal
123312351
10
Decimal
21861609
12
Duodecimal
73a3489
16
Hexadecimal
14d94e9
20
Vigesimal
6gce09
36
Base36
d0kix
md5
5e8e21c4a4f85aa0527f82360e85581b
sha1
18d28899eadbce41d820b7f5461728def54f37bc
sha256
e9c6e9a4a87a32f04722fe1a517f4bacc9b6d1b78c9237c07275842660fa6d6f
sha512
463318442be4689a598b32eff1789fa598f9066b4fb1d27b6f932b8f598f198a550d88b870e0d37296c6fde5f0934c220ee7f6b7027a4e5a715c87befd4f6bdd
ripemd-160
8b0d6dc81a3f05d2fb445dc0db33235bb82079f9
Diameter
43723218
Circumference
137360540.46011
Area
1.5014612137837E+15
Volume
4.3765810645874E+22
Surface area
6.005844855135E+15
Circumference
137360540.46011
Perimeter
87446436
Area
477929948068881
Diagonal
30916983.943098
Surface area
2867579688413286
Volume
1.0448317654072E+22
Space diagonal
37865417.523205
Perimeter
65584827
Area
2.0694973812851E+14
Altitude
18932708.761603
Surface area
2.0694973812851E+14
Volume
1.2313460441976E+21
Height
10305661.314366