21557055 is an odd 8-digits composite number following 21557054
and preceding 21557056 . In scientific notation, it is written as 2.1557055 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 10544256 positive integers (up to 21557055) that are relatively prime to 21557055.
21557055 has 16 divisors, whose sum is 24923136
The reverse of 21557055 is 55075512
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million five hundred fifty-seven thousand fifty-five
Scientific notation
2.1557055 × 10^7
Engineering notation
2.1557055 × 10^6
Prime Factorization
15 × 13 × 227 × 487
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21557055
Product of the distinct prime numbers
The prime factorization of 21557055 is 15 × 13 × 227 × 487.
Since it has a total of 4 prime factors.
6 , 7 , 73 , 86 , 628 , 609 , 5745 , 8329 , 71823 , 99875 , 135949 , 401222 , 3450789 , 3129974 , 13858358 , 24077377 , 237083465 , 737858273 , 5745824775 , 5380314767
n×2
43114110
n×3
64671165
n×4
86228220
n×5
107785275
n÷2
10778527.5
n÷3
7185685
n÷3
5389263.75
n÷5
4311411
n2
464706620273025
n3
1.001770617209E+22
n4
2.1595224292558E+29
n5
4.65529437812E+36
2 √n
4642.9575703424
3 √n
278.31063994006
4 √n
68.13925131921
5 √n
29.289899798669
1 , 13 , 15 , 195 , 227 , 487 , 2951 , 3405 , 6331 , 7305 , 44265 , 94965 , 110549 , 1437137 , 1658235 , 21557055
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21557054
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21557055 can be divided by 16 positive divisors.
The sum of these divisors (counting 21557055) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001110111100111111
3
Ternary
1111120012201110
4
Quaternary
1102032330333
5
Quinary
21004311210
6
Senary
2050013103
8
Octal
122167477
10
Decimal
21557055
12
Duodecimal
7277193
16
Hexadecimal
148ef3f
20
Vigesimal
6eeccf
36
Base36
cu1j3
md5
1d521f72d9ea1fada859b1674be4bd2e
sha1
75275bf9273ae884627b0a14bad0270e3705150b
sha256
533cb91fd5bbcbbb67726dc9b4c2a080ffde01dd0b9ba0a8cee3981e0982c09a
sha512
37e977f8a68ac7ea9cad73976d58ab66db8160528ceaf85b496c6b7099b419c24494250cc7fd5c95cdda50f50cd8fdd67f40f1e0d9c1a458ca12993bd795b4c6
ripemd-160
b72bc64f47aedbb32557bca856c00e1a29bbfb10
Diameter
43114110
Circumference
135446971.24206
Area
1.4599189043243E+15
Volume
4.1962069488078E+22
Surface area
5.8396756172971E+15
Circumference
135446971.24206
Perimeter
86228220
Area
464706620273025
Diagonal
30486279.545823
Surface area
2788239721638150
Volume
1.001770617209E+22
Space diagonal
37337914.521557
Perimeter
64671165
Area
2.0122386923162E+14
Altitude
18668957.260778
Surface area
2.0122386923162E+14
Volume
1.1805979943698E+21
Height
10162093.181941