18881242 is an even 8-digits composite number following 18881241
and preceding 18881243 . In scientific notation, it is written as 1.8881242 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 9440620 positive integers (up to 18881242) that are relatively prime to 18881242.
18881242 has 4 divisors, whose sum is 28321866
The reverse of 18881242 is 24218881
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighteen million eight hundred eighty-one thousand two hundred forty-two
Scientific notation
1.8881242 × 10^7
Engineering notation
1.8881242 × 10^6
Prime Factorization
2 × 9440621
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18881242
Product of the distinct prime numbers
The prime factorization of 18881242 is 2 × 9440621.
Since it has a total of 2 prime factors.
10 , 6 , 47 , 51 , 561 , 435 , 8516 , 4873 , 93208 , 71623 , 647478 , 652874 , 1668298 , 8992504 , 75390037 , 31711409 , 376607659 , 898489108 , 4144391801 , 9737519525
n×2
37762484
n×3
56643726
n×4
75524968
n×5
94406210
n÷2
9440621
n÷3
6293747.3333333
n÷3
4720310.5
n÷5
3776248.4
n2
356501299462564
n3
6.7311873084671E+21
n4
1.270931765185E+29
n5
2.3996770223945E+36
2 √n
4345.2551133391
3 √n
266.28304805526
4 √n
65.918549083996
5 √n
28.523716527535
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
-18881241
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 18881242 can be divided by 4 positive divisors.
The sum of these divisors (counting 18881242) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000000001101011011010
3
Ternary
1022112021012021
4
Quaternary
1020001223122
5
Quinary
14313144432
6
Senary
1512405054
8
Octal
110015332
10
Decimal
18881242
12
Duodecimal
63a678a
16
Hexadecimal
1201ada
20
Vigesimal
5i0322
36
Base36
b8ouy
md5
a30ddfaf5935f4f5e1d2a8eb05d73ffd
sha1
dddd57284f7430e1a5390d5606d93f30c947b01e
sha256
abf499e97fbeb9e078c541cc8431530b143da11abb4b625111b4ee9e3d4ce557
sha512
6f39fe4c83f1fdef1b6d58d578fa225ec137f68c30c1e29e4e356822d508e4a06cd328e1c29a67c8e66b17150e9e38bb81329ac213ce7f1335daa289769ee03a
ripemd-160
ad89cd947c5300c4968ed025fec0b23a36ca7fb8
Diameter
37762484
Circumference
118634342.3157
Area
1.1199818633868E+15
Volume
2.819553146429E+22
Surface area
4.4799274535472E+15
Circumference
118634342.3157
Perimeter
75524968
Area
356501299462564
Diagonal
26702108.510849
Surface area
2139007796775384
Volume
6.7311873084671E+21
Space diagonal
32703270.454003
Perimeter
56643726
Area
1.5436959090837E+14
Altitude
16351635.227002
Surface area
1.5436959090837E+14
Volume
7.9327803187566E+20
Height
8900702.8369495