21553957 is an odd 8-digits prime number following 21553956
and preceding 21553958 . In scientific notation, it is written as 2.1553957 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 21553956 positive integers (up to 21553957) that are relatively prime to 21553957.
21553957 has 2 divisors, whose sum is 21553958
The reverse of 21553957 is 75935512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million five hundred fifty-three thousand nine hundred fifty-seven
Scientific notation
2.1553957 × 10^7
Engineering notation
2.1553957 × 10^6
Prime Factorization
21553957
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21553957
Product of the distinct prime numbers
The prime factorization of 21553957 is 21553957.
Since it has a total of 1 prime factors.
4 , 5 , 92 , 64 , 585 , 839 , 7353 , 3049 , 21891 , 7469 , 223237 , 410142 , 1307050 , 138348 , 91362540 , 50796602 , 342468243 , 977542099 , 4903410640 , 7735083811
n×2
43107914
n×3
64661871
n×4
86215828
n×5
107769785
n÷2
10776978.5
n÷3
7184652.3333333
n÷3
5388489.25
n÷5
4310791.4
n2
464573062357849
n3
1.0013387809419E+22
n4
2.1582813026855E+29
n5
4.6519502391987E+36
2 √n
4642.6239348024
3 √n
278.29730714067
4 √n
68.136803086162
5 √n
29.289057890289
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21553958
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10776979
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4642.6240425001
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999072096
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21553957 can be divided by 2 positive divisors.
The sum of these divisors (counting 21553957) is 21553958, the average is 10776979.
Base
System
Value
2
Binary
1010010001110001100100101
3
Ternary
1111120001110201
4
Quaternary
1102032030211
5
Quinary
21004211312
6
Senary
2045550501
8
Octal
122161445
10
Decimal
21553957
12
Duodecimal
7275431
16
Hexadecimal
148e325
20
Vigesimal
6ee4hh
36
Base36
ctz51
md5
3344d72debb2df223508f8acf91814d8
sha1
e0a8c9dfebc70f8708ba5ba7703d40bff04ed158
sha256
a6ef8e1c94e8cfff20d77cf905787473da0767e51c5c28c2eeaa107b3e72a5a6
sha512
d6879b6722bda7ba84722606a19865e8baf2a8fb3db7690fe444e8e1871c1bb5ed251a921b860e1344656a63b42bddfde67076d3f38e780c3b58c52b65a65c16
ripemd-160
03c221f70cf7da41329de33fbca1aa6080e14e23
Diameter
43107914
Circumference
135427505.93398
Area
1.4594993197591E+15
Volume
4.1943980772823E+22
Surface area
5.8379972790365E+15
Circumference
135427505.93398
Perimeter
86215828
Area
464573062357849
Diagonal
30481898.312207
Surface area
2787438374147094
Volume
1.0013387809419E+22
Space diagonal
37332548.628155
Perimeter
64661871
Area
2.0116603695791E+14
Altitude
18666274.314077
Surface area
2.0116603695791E+14
Volume
1.1800890704485E+21
Height
10160632.770736