18490621 is an odd 8-digits composite number following 18490620
and preceding 18490622 . In scientific notation, it is written as 1.8490621 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 18480672 positive integers (up to 18490621) that are relatively prime to 18490621.
18490621 has 4 divisors, whose sum is 18500572
The reverse of 18490621 is 12609481
Previous prime number is 7477
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million four hundred ninety thousand six hundred twenty-one
Scientific notation
1.8490621 × 10^7
Engineering notation
1.8490621 × 10^6
Prime Factorization
7477 × 2473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18490621
Product of the distinct prime numbers
The prime factorization of 18490621 is 7477 × 2473.
Since it has a total of 2 prime factors.
4 , 7 , 77 , 11 , 666 , 396 , 3941 , 7355 , 36841 , 1403 , 824766 , 228345 , 1306060 , 8007777 , 25067956 , 66982230 , 283743611 , 16589043 , 1417452422 , 1789883683
n×2
36981242
n×3
55471863
n×4
73962484
n×5
92453105
n÷2
9245310.5
n÷3
6163540.3333333
n÷3
4622655.25
n÷5
3698124.2
n2
341903064965641
n3
6.321999993018E+21
n4
1.168977058329E+29
n5
2.1615111743256E+36
2 √n
4300.072208696
3 √n
264.43392157491
4 √n
65.574935826854
5 √n
28.404706057922
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
-18490620
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 18490621 can be divided by 4 positive divisors.
The sum of these divisors (counting 18490621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110100010010011111101
3
Ternary
1021210102100211
4
Quaternary
1012202103331
5
Quinary
14213144441
6
Senary
1500152421
8
Octal
106422375
10
Decimal
18490621
12
Duodecimal
6238711
16
Hexadecimal
11a24fd
20
Vigesimal
5fb6b1
36
Base36
b0bgd
md5
f3d360fb6d58bade37cf248aa7eb36a3
sha1
7ebcd206204eda6492246d24158bf8e78c27049b
sha256
d79bcdb1c24582e2d1b4dfe5ea68df422e65e8c76c9e40fb854c2fa7200a56cb
sha512
bb6d5e1b74d82d8f55303cdd3cd72576d7031446bf5d3f2e68dec638f9fc1932b0852ce303f2c0af6bc65911cd16ec8086e80f71ae18a171cd48a4b4378aa947
ripemd-160
ad3de937d87823f6f949fbf8108d4917e62e5399
Diameter
36981242
Circumference
116179998.18783
Area
1.0741201571359E+15
Volume
2.6481531645414E+22
Surface area
4.2964806285436E+15
Circumference
116179998.18783
Perimeter
73962484
Area
341903064965641
Diagonal
26149686.994901
Surface area
2051418389793846
Volume
6.321999993018E+21
Space diagonal
32026695.0355
Perimeter
55471863
Area
1.48048369946E+14
Altitude
16013347.51775
Surface area
1.48048369946E+14
Volume
7.4505484428739E+20
Height
8716562.3316336