18997072 is an even 8-digits composite number following 18997071
and preceding 18997073 . In scientific notation, it is written as 1.8997072 × 10^7.
The sum of its digits is 43. It has a total of 5 prime factors and 10 positive divisors.
There are 9498528 positive integers (up to 18997072) that are relatively prime to 18997072.
18997072 has 10 divisors, whose sum is 36806858
The reverse of 18997072 is 27079981
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighteen million nine hundred ninety-seven thousand seventy-two
Scientific notation
1.8997072 × 10^7
Engineering notation
1.8997072 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1187317
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2374634
Product of the distinct prime numbers
The prime factorization of 18997072 is 2 × 2 × 2 × 2 × 1187317.
Since it has a total of 5 prime factors.
9 , 8 , 45 , 16 , 22 , 581 , 1370 , 3241 , 214 , 16066 , 941233 , 851575 , 6276558 , 4163276 , 52208259 , 71896395 , 944193066 , 539999634 , 6204552545 , 9019054652
n×2
37994144
n×3
56991216
n×4
75988288
n×5
94985360
n÷2
9498536
n÷3
6332357.3333333
n÷3
4749268
n÷5
3799414.4
n2
360888744573184
n3
6.8558294646464E+21
n4
1.3024068595961E+29
n5
2.4741916885041E+36
2 √n
4358.5630659657
3 √n
266.82645701008
4 √n
66.019414310986
5 √n
28.558627625786
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18997071
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18997072 can be divided by 10 positive divisors.
The sum of these divisors (counting 18997072) is 1, the average is 0.1.
Base
System
Value
2
Binary
1001000011101111101010000
3
Ternary
1022202011002021
4
Quaternary
1020131331100
5
Quinary
14330401242
6
Senary
1515101224
8
Octal
110357520
10
Decimal
18997072
12
Duodecimal
6441814
16
Hexadecimal
121df50
20
Vigesimal
5iecdc
36
Base36
bb68g
md5
64af843d47d8a9892cb6fa97a552c980
sha1
14db9b90d11b7e9112daa7c41a3e6666cb33750e
sha256
f03809297e6e3504b63af6de206bd9f5f4cabde15c15f882b58535c85c675295
sha512
2eadd1fe89bb17d1933edf97f0958b527fe3cce09857e66d44055d534e340a85e4e6a461fa6ae7d243dc39f36886f0d0898a85fed5beda8c5ee6ce063be38f54
ripemd-160
4623af236b53fcc419bbc56482df544db5f1b160
Diameter
37994144
Circumference
119362123.66983
Area
1.1337654287144E+15
Volume
2.8717631307197E+22
Surface area
4.5350617148574E+15
Circumference
119362123.66983
Perimeter
75988288
Area
360888744573184
Diagonal
26865916.867778
Surface area
2165332467439104
Volume
6.8558294646464E+21
Space diagonal
32903893.899044
Perimeter
56991216
Area
1.5626941037013E+14
Altitude
16451946.949522
Surface area
1.5626941037013E+14
Volume
8.0796725085167E+20
Height
8955305.6225927