18257989 is an odd 8-digits prime number following 18257988
and preceding 18257990 . In scientific notation, it is written as 1.8257989 × 10^7.
The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors.
There are 18257988 positive integers (up to 18257989) that are relatively prime to 18257989.
18257989 has 2 divisors, whose sum is 18257990
The reverse of 18257989 is 98975281
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million two hundred fifty-seven thousand nine hundred eighty-nine
Scientific notation
1.8257989 × 10^7
Engineering notation
1.8257989 × 10^6
Prime Factorization
18257989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18257989
Product of the distinct prime numbers
The prime factorization of 18257989 is 18257989.
Since it has a total of 1 prime factors.
9 , 8 , 17 , 86 , 572 , 454 , 9172 , 2052 , 49266 , 50774 , 518514 , 407227 , 7527514 , 4415514 , 5978669 , 49978118 , 428228172 , 778518573 , 6121173760 , 2798618472
n×2
36515978
n×3
54773967
n×4
73031956
n×5
91289945
n÷2
9128994.5
n÷3
6085996.3333333
n÷3
4564497.25
n÷5
3651597.8
n2
333354162324121
n3
6.086376628818E+21
n4
1.1112499753882E+29
n5
2.0289189826887E+36
2 √n
4272.9368120767
3 √n
263.32028331776
4 √n
65.367704656632
5 √n
28.332871257383
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18257990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9128995
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4272.9369290922
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998904589
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18257989 can be divided by 2 positive divisors.
The sum of these divisors (counting 18257989) is 18257990, the average is 9128995.
Base
System
Value
2
Binary
1000101101001100001000101
3
Ternary
1021100121020211
4
Quaternary
1011221201011
5
Quinary
14133223424
6
Senary
1451155421
8
Octal
105514105
10
Decimal
18257989
12
Duodecimal
6145b71
16
Hexadecimal
1169845
20
Vigesimal
5e24j9
36
Base36
avbyd
md5
e62ada28794fac3940dc47e564fffdd0
sha1
474eddbf8259927a503d126feb9722b8e93b44da
sha256
3f53ee452168d35ad88488be19fca8c398e105f5cc58a0d7c4837d9bad5bc2b0
sha512
4dace3bd1ef5199ed6d4081894161aad1cf32c7a850a35575e72663f1e40bbfb587c7cd646a4cce101ddae82a97bb276dc287f6e22dfc41dfb3bff24c9ab400b
ripemd-160
4ef655eb9664abcae0042529c42bcce0c369c49d
Diameter
36515978
Circumference
114718328.22345
Area
1.047262987401E+15
Volume
2.5494554805434E+22
Surface area
4.1890519496042E+15
Circumference
114718328.22345
Perimeter
73031956
Area
333354162324121
Diagonal
25820695.665459
Surface area
2000124973944726
Volume
6.086376628818E+21
Space diagonal
31623764.592034
Perimeter
54773967
Area
1.4434658651499E+14
Altitude
15811882.296017
Surface area
1.4434658651499E+14
Volume
7.1728636451542E+20
Height
8606898.5551529