21557038 is an even 8-digits composite number following 21557037
and preceding 21557039 . In scientific notation, it is written as 2.1557038 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 10778518 positive integers (up to 21557038) that are relatively prime to 21557038.
21557038 has 4 divisors, whose sum is 32335560
The reverse of 21557038 is 83075512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million five hundred fifty-seven thousand thirty-eight
Scientific notation
2.1557038 × 10^7
Engineering notation
2.1557038 × 10^6
Prime Factorization
2 × 10778519
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21557038
Product of the distinct prime numbers
The prime factorization of 21557038 is 2 × 10778519.
Since it has a total of 2 prime factors.
2 , 3 , 71 , 27 , 560 , 931 , 8499 , 8653 , 17846 , 71203 , 470938 , 381484 , 7661991 , 4830933 , 46229348 , 75665860 , 406116620 , 946948449 , 3616624587 , 6910982809
n×2
43114076
n×3
64671114
n×4
86228152
n×5
107785190
n÷2
10778519
n÷3
7185679.3333333
n÷3
5389259.5
n÷5
4311407.6
n2
464705887333444
n3
1.0017682472071E+22
n4
2.1595156172236E+29
n5
4.6552760222083E+36
2 √n
4642.9557396124
3 √n
278.31056678099
4 √n
68.139237885468
5 √n
29.289895179035
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
-21557037
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 21557038 can be divided by 4 positive divisors.
The sum of these divisors (counting 21557038) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110111100101110
3
Ternary
1111120012200211
4
Quaternary
1102032330232
5
Quinary
21004311123
6
Senary
2050013034
8
Octal
122167456
10
Decimal
21557038
12
Duodecimal
727717a
16
Hexadecimal
148ef2e
20
Vigesimal
6eecbi
36
Base36
cu1im
md5
c232d08b680c8183018dea789d0dbdae
sha1
796d905a35b9a1038144e9ca90fae54009c6102d
sha256
36f91a3edd2df414420331ec64398dffec90c2be615885a29ccc3b34273bb210
sha512
47d105e5809ee1a0aa09b93d0e5d08b941e0a75d7abcc11d82e5965b3828a159de45b34f10549070123a8c6b5e9ebfa562f9d7f8972c71fa459d300f3c20182d
ripemd-160
aa001ee2c149cd3788e51954effa93946ad39153
Diameter
43114076
Circumference
135446864.42791
Area
1.4599166017267E+15
Volume
4.196197021367E+22
Surface area
5.8396664069067E+15
Circumference
135446864.42791
Perimeter
86228152
Area
464705887333444
Diagonal
30486255.504192
Surface area
2788235324000664
Volume
1.0017682472071E+22
Space diagonal
37337885.076693
Perimeter
64671114
Area
2.0122355185948E+14
Altitude
18668942.538346
Surface area
2.0122355185948E+14
Volume
1.1805952012958E+21
Height
10162085.168064