21542021 is an odd 8-digits composite number following 21542020
and preceding 21542022 . In scientific notation, it is written as 2.1542021 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 21176844 positive integers (up to 21542021) that are relatively prime to 21542021.
21542021 has 4 divisors, whose sum is 21907200
The reverse of 21542021 is 12024512
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million five hundred forty-two thousand twenty-one
Scientific notation
2.1542021 × 10^7
Engineering notation
2.1542021 × 10^6
Prime Factorization
59 × 365119
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21542021
Product of the distinct prime numbers
The prime factorization of 21542021 is 59 × 365119.
Since it has a total of 2 prime factors.
8 , 9 , 74 , 83 , 150 , 154 , 7532 , 1912 , 8256 , 56466 , 894109 , 478005 , 2936256 , 6040245 , 45018767 , 65273762 , 222543328 , 47642077 , 7441054391 , 1179019652
n×2
43084042
n×3
64626063
n×4
86168084
n×5
107710105
n÷2
10771010.5
n÷3
7180673.6666667
n÷3
5385505.25
n÷5
4308404.2
n2
464058668764441
n3
9.9967615877556E+21
n4
2.1535044805543E+29
n5
4.6390838743694E+36
2 √n
4641.3382768335
3 √n
278.24592647442
4 √n
68.127368045695
5 √n
29.285813273451
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
-21542020
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 21542021 can be divided by 4 positive divisors.
The sum of these divisors (counting 21542021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001011010010000101
3
Ternary
1111112110002122
4
Quaternary
1102023102011
5
Quinary
21003321041
6
Senary
2045415325
8
Octal
122132205
10
Decimal
21542021
12
Duodecimal
726a545
16
Hexadecimal
148b485
20
Vigesimal
6ecf11
36
Base36
ctpxh
md5
b91df2978bde303ee601d2c22a611ce6
sha1
37c0b4ffa010d6bb56c7cc739cb99fd980d2e840
sha256
559851dac2fabd3b991061ca53426983d9202f284b4ed5e160d737e618c864fe
sha512
e061e4f56ca80f469c390413a9f070654ea03e86dc643bae2cf40b4593848d1f3f42d7b67b7c8f6a3df73edfc4c7e7851185039108c38ac6d49b824ecac77871
ripemd-160
8b3b0e0460e18f70aa92fdfac877bdf716db1205
Diameter
43084042
Circumference
135352509.83415
Area
1.457883304625E+15
Volume
4.1874337018376E+22
Surface area
5.8315332185001E+15
Circumference
135352509.83415
Perimeter
86168084
Area
464058668764441
Diagonal
30465018.259126
Surface area
2784352012586646
Volume
9.9967615877556E+21
Space diagonal
37311874.869716
Perimeter
64626063
Area
2.009432979982E+14
Altitude
18655937.434858
Surface area
2.009432979982E+14
Volume
1.1781296514345E+21
Height
10155006.086375