21551856 is an even 8-digits composite number following 21551855
and preceding 21551857 . In scientific notation, it is written as 2.1551856 × 10^7.
The sum of its digits is 33. It has a total of 6 prime factors and 20 positive divisors.
There are 7183936 positive integers (up to 21551856) that are relatively prime to 21551856.
21551856 has 20 divisors, whose sum is 55675752
The reverse of 21551856 is 65815512
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million five hundred fifty-one thousand eight hundred fifty-six
Scientific notation
2.1551856 × 10^7
Engineering notation
2.1551856 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 3 × 448997
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2693982
Product of the distinct prime numbers
The prime factorization of 21551856 is 2 × 2 × 2 × 2 × 3 × 448997.
Since it has a total of 6 prime factors.
5 , 5 , 56 , 47 , 989 , 289 , 4206 , 6890 , 73183 , 41292 , 169980 , 201240 , 6745946 , 1821739 , 45798719 , 51964081 , 894826472 , 986379615 , 9575111997 , 509156802
n×2
43103712
n×3
64655568
n×4
86207424
n×5
107759280
n÷2
10775928
n÷3
7183952
n÷3
5387964
n÷5
4310371.2
n2
464482497044736
n3
1.0010459890829E+22
n4
2.1574399006091E+29
n5
4.6496834066582E+36
2 √n
4642.397656384
3 √n
278.28826438282
4 √n
68.135142594582
5 √n
29.28848687022
1 , 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 48 , 448997 , 897994 , 1346991 , 1795988 , 2693982 , 3591976 , 5387964 , 7183952 , 10775928 , 21551856
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21551855
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551856 can be divided by 20 positive divisors.
The sum of these divisors (counting 21551856) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010010001101101011110000
3
Ternary
1111112221120220
4
Quaternary
1102031223300
5
Quinary
21004124411
6
Senary
2045533040
8
Octal
122155360
10
Decimal
21551856
12
Duodecimal
7274180
16
Hexadecimal
148daf0
20
Vigesimal
6edjcg
36
Base36
ctxio
md5
47f96ed83552aaf0461f6131077abc1c
sha1
a1f09426d9d2642682ad924065a6fe58212779c1
sha256
9967e8e6372ddd9bacf9605a67cdfa3fb88a8cf6043995b985f5e53426c1f10a
sha512
2bcbfbf7d079010ffe454c2628b1483a6a52efa5e1bff4fd38d30757a36d90e369eac9f160b55b621a505d5305214f8d9e6084064eb8665b9ff658d59fe0c779
ripemd-160
a9b1db96bd8d660d741538264813834af7676978
Diameter
43103712
Circumference
135414304.96165
Area
1.4592148004368E+15
Volume
4.193171633611E+22
Surface area
5.8368592017471E+15
Circumference
135414304.96165
Perimeter
86207424
Area
464482497044736
Diagonal
30478927.049512
Surface area
2786894982268416
Volume
1.0010459890829E+22
Space diagonal
37328909.589408
Perimeter
64655568
Area
2.0112682102699E+14
Altitude
18664454.794704
Surface area
2.0112682102699E+14
Volume
1.1797440119335E+21
Height
10159642.349837