21554218 is an even 8-digits composite number following 21554217
and preceding 21554219 . In scientific notation, it is written as 2.1554218 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 9237480 positive integers (up to 21554218) that are relatively prime to 21554218.
21554218 has 12 divisors, whose sum is 37610082
The reverse of 21554218 is 81245512
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-four thousand two hundred eighteen
Scientific notation
2.1554218 × 10^7
Engineering notation
2.1554218 × 10^6
Prime Factorization
2 × 7 × 7 × 219941
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
3079174
Product of the distinct prime numbers
The prime factorization of 21554218 is 2 × 7 × 7 × 219941.
Since it has a total of 4 prime factors.
2 , 10 , 70 , 32 , 553 , 377 , 4507 , 8534 , 42778 , 5314 , 828366 , 913721 , 1583742 , 3726156 , 71412179 , 39069316 , 845160553 , 150894960 , 4628724472 , 9606402434
n×2
43108436
n×3
64662654
n×4
86216872
n×5
107771090
n÷2
10777109
n÷3
7184739.3333333
n÷3
5388554.5
n÷5
4310843.6
n2
464584313591524
n3
1.0013751574532E+22
n4
2.1583858443531E+29
n5
4.65223190173E+36
2 √n
4642.6520438215
3 √n
278.29843045033
4 √n
68.13700935484
5 √n
29.289128823038
1 , 2 , 7 , 14 , 49 , 98 , 219941 , 439882 , 1539587 , 3079174 , 10777109 , 21554218
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21554217
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21554218 can be divided by 12 positive divisors.
The sum of these divisors (counting 21554218) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010001110010000101010
3
Ternary
1111120001211101
4
Quaternary
1102032100222
5
Quinary
21004213333
6
Senary
2045552014
8
Octal
122162052
10
Decimal
21554218
12
Duodecimal
727560a
16
Hexadecimal
148e42a
20
Vigesimal
6ee5ai
36
Base36
ctzca
md5
25238273891ef34bf4fef5031d3f6e81
sha1
ec2292a3bb05f9094209b8b0449ffa603a892575
sha256
34490dcbc2b8c7e09c7cda36e3f4820333058d8d58fb5038b1604b63f6ef2c81
sha512
2358efc1eefcddd0a10ba22d4c4f783fdbcd8df4aa8681690bb1297925180812e6658a4357a6aebe28e15223358a1c6ea4394f9bdb774624c210129a6519ac70
ripemd-160
9ac2f67222430fd7b14853fc04a8450e271bee21
Diameter
43108436
Circumference
135429145.84535
Area
1.4595346665522E+15
Volume
4.1945504508564E+22
Surface area
5.8381386662088E+15
Circumference
135429145.84535
Perimeter
86216872
Area
464584313591524
Diagonal
30482267.421946
Surface area
2787505881549144
Volume
1.0013751574532E+22
Space diagonal
37333000.693416
Perimeter
64662654
Area
2.0117090888501E+14
Altitude
18666500.346708
Surface area
2.0117090888501E+14
Volume
1.1801319405782E+21
Height
10160755.807315