21554986 is an even 8-digits composite number following 21554985
and preceding 21554987 . In scientific notation, it is written as 2.1554986 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 10777492 positive integers (up to 21554986) that are relatively prime to 21554986.
21554986 has 4 divisors, whose sum is 32332482
The reverse of 21554986 is 68945512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million five hundred fifty-four thousand nine hundred eighty-six
Scientific notation
2.1554986 × 10^7
Engineering notation
2.1554986 × 10^6
Prime Factorization
2 × 10777493
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21554986
Product of the distinct prime numbers
The prime factorization of 21554986 is 2 × 10777493.
Since it has a total of 2 prime factors.
2 , 6 , 89 , 6 , 157 , 12 , 8068 , 8824 , 60610 , 61432 , 840742 , 568076 , 2280032 , 5098733 , 43801633 , 30203756 , 345104559 , 733863958 , 4302377360 , 4188245770
n×2
43109972
n×3
64664958
n×4
86219944
n×5
107774930
n÷2
10777493
n÷3
7184995.3333333
n÷3
5388746.5
n÷5
4310997.2
n2
464617421460196
n3
1.0014822014931E+22
n4
2.1586934832432E+29
n5
4.6530607809599E+36
2 √n
4642.7347544308
3 √n
278.30173576867
4 √n
68.137616295486
5 √n
29.289337540704
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
-21554985
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 21554986 can be divided by 4 positive divisors.
The sum of these divisors (counting 21554986) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110011100101010
3
Ternary
1111120002212211
4
Quaternary
1102032130222
5
Quinary
21004224421
6
Senary
2045555334
8
Octal
122163452
10
Decimal
21554986
12
Duodecimal
7275b4a
16
Hexadecimal
148e72a
20
Vigesimal
6ee796
36
Base36
ctzxm
md5
cd8ba0d4055f9f86c58a9be977e45e62
sha1
3e68c125f8ece3e0954c941d5f08b575500c090a
sha256
ae4adbfca75e64b7234003af67f56a9c4bd6e5c9e28fb4c50d75c4df2fcf8c3b
sha512
b672f3a280a8a90a75848017e93a055f949a8dfceae7de635535344fd6383901feaabe4f8d35000db49389c490aed6f8aedeceb6d63ef9d7aab8d37b873d904c
ripemd-160
5c2db326fda69bf6936465923aa558c91c76d367
Diameter
43109972
Circumference
135433971.33166
Area
1.4596386779892E+15
Volume
4.1949988358821E+22
Surface area
5.8385547119567E+15
Circumference
135433971.33166
Perimeter
86219944
Area
464617421460196
Diagonal
30483353.537962
Surface area
2787704528761176
Volume
1.0014822014931E+22
Space diagonal
37334330.908436
Perimeter
64664958
Area
2.0118524501268E+14
Altitude
18667165.454218
Surface area
2.0118524501268E+14
Volume
1.180258093189E+21
Height
10161117.845987