18972013 is an odd 8-digits composite number following 18972012
and preceding 18972014 . In scientific notation, it is written as 1.8972013 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 17973468 positive integers (up to 18972013) that are relatively prime to 18972013.
18972013 has 4 divisors, whose sum is 19970560
The reverse of 18972013 is 31027981
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million nine hundred seventy-two thousand thirteen
Scientific notation
1.8972013 × 10^7
Engineering notation
1.8972013 × 10^6
Prime Factorization
19 × 998527
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18972013
Product of the distinct prime numbers
The prime factorization of 18972013 is 19 × 998527.
Since it has a total of 2 prime factors.
8 , 10 , 63 , 63 , 273 , 80 , 8159 , 9456 , 32461 , 44362 , 774562 , 179405 , 5361843 , 8556144 , 15365983 , 22931761 , 963310441 , 651053354 , 3358779868 , 2226183398
n×2
37944026
n×3
56916039
n×4
75888052
n×5
94860065
n÷2
9486006.5
n÷3
6324004.3333333
n÷3
4743003.25
n÷5
3794402.6
n2
359937277272169
n3
6.8287347035922E+21
n4
1.295548435701E+29
n5
2.4579161764249E+36
2 √n
4355.6874313936
3 √n
266.70908196845
4 √n
65.997632013532
5 √n
28.551089321419
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
-18972012
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 18972013 can be divided by 4 positive divisors.
The sum of these divisors (counting 18972013) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000010111110101101101
3
Ternary
1022200212201011
4
Quaternary
1020113311231
5
Quinary
14324101023
6
Senary
1514345221
8
Octal
110276555
10
Decimal
18972013
12
Duodecimal
642b211
16
Hexadecimal
1217d6d
20
Vigesimal
5iba0d
36
Base36
bamwd
md5
7be91756149f1276880ff0fce130eded
sha1
77aa376dd2cee62be93cb471703c25fd3ba1ae5e
sha256
2f75672cdbb1e1014bfc412aaa6e11185eb81371f9864f9c06955a48e2d089ab
sha512
9a829a77d72f3f24b4db769e6026d70d63c9e8f83a6815f67cf6a5191116fdb6e9eb6e8704ccc1541b4e0d8927d99a4f2c07c471faccea0dffc5d775ae13f8b2
ripemd-160
552f79e5a0ba8c1324dd60117bf1897941330298
Diameter
37944026
Circumference
119204673.32922
Area
1.1307763060314E+15
Volume
2.8604137037492E+22
Surface area
4.5231052241254E+15
Circumference
119204673.32922
Perimeter
75888052
Area
359937277272169
Diagonal
26830478.090119
Surface area
2159623663633014
Volume
6.8287347035922E+21
Space diagonal
32860490.437857
Perimeter
56916039
Area
1.5585741294335E+14
Altitude
16430245.218929
Surface area
1.5585741294335E+14
Volume
8.0477410263899E+20
Height
8943492.6967062