18997906 is an even 8-digits composite number following 18997905
and preceding 18997907 . In scientific notation, it is written as 1.8997906 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 9498952 positive integers (up to 18997906) that are relatively prime to 18997906.
18997906 has 4 divisors, whose sum is 28496862
The reverse of 18997906 is 60979981
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million nine hundred ninety-seven thousand nine hundred six
Scientific notation
1.8997906 × 10^7
Engineering notation
1.8997906 × 10^6
Prime Factorization
2 × 9498953
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18997906
Product of the distinct prime numbers
The prime factorization of 18997906 is 2 × 9498953.
Since it has a total of 2 prime factors.
4 , 3 , 86 , 98 , 324 , 571 , 1168 , 4807 , 95424 , 82091 , 497964 , 896661 , 4371114 , 605935 , 19742217 , 56270979 , 381934479 , 548465178 , 640473965 , 8427165394
n×2
37995812
n×3
56993718
n×4
75991624
n×5
94989530
n÷2
9498953
n÷3
6332635.3333333
n÷3
4749476.5
n÷5
3799581.2
n2
360920432384836
n3
6.8567324479265E+21
n4
1.3026355851286E+29
n5
2.4747348398528E+36
2 √n
4358.6587386489
3 √n
266.83036164704
4 √n
66.020138886925
5 √n
28.558878374714
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
-18997905
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 18997906 can be divided by 4 positive divisors.
The sum of these divisors (counting 18997906) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000011110001010010010
3
Ternary
1022202012020011
4
Quaternary
1020132022102
5
Quinary
14330413111
6
Senary
1515105134
8
Octal
110361222
10
Decimal
18997906
12
Duodecimal
64421aa
16
Hexadecimal
121e292
20
Vigesimal
5ieef6
36
Base36
bb6vm
md5
4255aaa6f5d8f96666df96b0365a4e17
sha1
22faf48c5d02dbe6fe79be7b95a5468f50962086
sha256
55288720359df5b9d03ea9131968d4db38128ae2b56a07c2530b5c69369287e4
sha512
80d0e7a71bf28d0db63d600af824dbcab5afb656f7a609374d02117e87e2094df6cd96eeab269c8e0b77173410cfa6bffa074900c2e82bd66342a8095e2a59a2
ripemd-160
a7b16e8a3cf9fb2d646c7ae31097352515d5d55a
Diameter
37995812
Circumference
119367363.84638
Area
1.1338649789107E+15
Volume
2.8721413714715E+22
Surface area
4.5354599156426E+15
Circumference
119367363.84638
Perimeter
75991624
Area
360920432384836
Diagonal
26867096.321889
Surface area
2165522594309016
Volume
6.8567324479265E+21
Space diagonal
32905338.429418
Perimeter
56993718
Area
1.5628313159507E+14
Altitude
16452669.214709
Surface area
1.5628313159507E+14
Volume
8.0807366845177E+20
Height
8955698.7739631