21554939 is an odd 8-digits composite number following 21554938
and preceding 21554940 . In scientific notation, it is written as 2.1554939 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 18475656 positive integers (up to 21554939) that are relatively prime to 21554939.
21554939 has 4 divisors, whose sum is 24634224
The reverse of 21554939 is 93945512
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million five hundred fifty-four thousand nine hundred thirty-nine
Scientific notation
2.1554939 × 10^7
Engineering notation
2.1554939 × 10^6
Prime Factorization
7 × 3079277
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21554939
Product of the distinct prime numbers
The prime factorization of 21554939 is 7 × 3079277.
Since it has a total of 2 prime factors.
8 , 5 , 58 , 87 , 284 , 485 , 2925 , 6870 , 31988 , 95425 , 659655 , 667511 , 2561181 , 7622425 , 42787092 , 53405879 , 892287415 , 310839329 , 3536608975 , 5888403792
n×2
43109878
n×3
64664817
n×4
86219756
n×5
107774695
n÷2
10777469.5
n÷3
7184979.6666667
n÷3
5388734.75
n÷5
4310987.8
n2
464615395293721
n3
1.0014756504017E+22
n4
2.1586746554394E+29
n5
4.6530100518842E+36
2 √n
4642.7296927562
3 √n
278.30153349233
4 √n
68.137579152449
5 √n
29.289324767788
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
-21554938
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 21554939 can be divided by 4 positive divisors.
The sum of these divisors (counting 21554939) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110011011111011
3
Ternary
1111120002211002
4
Quaternary
1102032123323
5
Quinary
21004224224
6
Senary
2045555215
8
Octal
122163373
10
Decimal
21554939
12
Duodecimal
7275b0b
16
Hexadecimal
148e6fb
20
Vigesimal
6ee76j
36
Base36
ctzwb
md5
d63cb3c3f85c07b342e337dd3970f205
sha1
1ee18408721d4dcac914788ea15cd78b314d97f6
sha256
8d11b37496bc55fdfaab5ff493bdab54d422deda3c6048512c9323359340b534
sha512
4502da3295f74369c096a42eb16a28f46cf4c21b7ec4aec475b4c0a88a1b2a1c911c219333c2525aabf0fc3c75384d976e8a03ed168e4b6a8e69d94ce2e08151
ripemd-160
6a0b9982118baf60b743568a06fb1adbf5ce6d20
Diameter
43109878
Circumference
135433676.02195
Area
1.4596323125995E+15
Volume
4.1949713947347E+22
Surface area
5.8385292503979E+15
Circumference
135433676.02195
Perimeter
86219756
Area
464615395293721
Diagonal
30483287.069925
Surface area
2787692371762326
Volume
1.0014756504017E+22
Space diagonal
37334249.502048
Perimeter
64664817
Area
2.0118436765686E+14
Altitude
18667124.751024
Surface area
2.0118436765686E+14
Volume
1.1802503726538E+21
Height
10161095.689975