18542021 is an odd 8-digits composite number following 18542020
and preceding 18542022 . In scientific notation, it is written as 1.8542021 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 18488544 positive integers (up to 18542021) that are relatively prime to 18542021.
18542021 has 4 divisors, whose sum is 18595500
The reverse of 18542021 is 12024581
Previous prime number is 53129
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighteen million five hundred forty-two thousand twenty-one
Scientific notation
1.8542021 × 10^7
Engineering notation
1.8542021 × 10^6
Prime Factorization
53129 × 349
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18542021
Product of the distinct prime numbers
The prime factorization of 18542021 is 53129 × 349.
Since it has a total of 2 prime factors.
10 , 3 , 10 , 81 , 907 , 603 , 9000 , 4946 , 11231 , 72688 , 933741 , 740487 , 1537547 , 2354408 , 47883841 , 27145964 , 670929421 , 795348151 , 6025655065 , 6757839009
n×2
37084042
n×3
55626063
n×4
74168084
n×5
92710105
n÷2
9271010.5
n÷3
6180673.6666667
n÷3
4635505.25
n÷5
3708404.2
n2
343806542764441
n3
6.3748681358757E+21
n4
1.1820293884764E+29
n5
2.1917213743746E+36
2 √n
4306.0447048306
3 √n
264.67871827086
4 √n
65.620459498777
5 √n
28.420480338252
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
-18542020
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 18542021 can be divided by 4 positive divisors.
The sum of these divisors (counting 18542021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110101110110111000101
3
Ternary
1021220000212112
4
Quaternary
1012232313011
5
Quinary
14221321041
6
Senary
1501230405
8
Octal
106566705
10
Decimal
18542021
12
Duodecimal
6262405
16
Hexadecimal
11aedc5
20
Vigesimal
5fhf11
36
Base36
b1f45
md5
564f2edcf5b936bb3e6395503dfca310
sha1
0ff334173d8a5a37b0f1f6b8277a6c0212e834da
sha256
4d94b6aedb82ca1e040bd156454f66df20596196ed7db86e2f647cdff631a396
sha512
7a8e2af9f57568140e49b3063e5d38e6163e536a0b3cbe5259a66e5ec5dab64aa9a12083239a9bf9593cb987a0f442f380cd3c6f8b87ada692d9841aa221d20f
ripemd-160
e23c75ffbb7403738c28ec3e82be4ffb6cc88a9b
Diameter
37084042
Circumference
116502953.91262
Area
1.0801001090049E+15
Volume
2.6702985204361E+22
Surface area
4.3204004360195E+15
Circumference
116502953.91262
Perimeter
74168084
Area
343806542764441
Diagonal
26222377.572007
Surface area
2062839256586646
Volume
6.3748681358757E+21
Space diagonal
32115722.447009
Perimeter
55626063
Area
1.4887260001065E+14
Altitude
16057861.223505
Surface area
1.4887260001065E+14
Volume
7.5128541467462E+20
Height
8740792.5240022