18189897 is an odd 8-digits composite number following 18189896
and preceding 18189898 . In scientific notation, it is written as 1.8189897 × 10^7.
The sum of its digits is 51. It has a total of 5 prime factors and 32 positive divisors.
There are 10264320 positive integers (up to 18189897) that are relatively prime to 18189897.
18189897 has 32 divisors, whose sum is 28331520
The reverse of 18189897 is 79898181
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
eighteen million one hundred eighty-nine thousand eight hundred ninety-seven
Scientific notation
1.8189897 × 10^7
Engineering notation
1.8189897 × 10^6
Prime Factorization
19 × 3 × 11 × 67 × 433
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
18189897
Product of the distinct prime numbers
The prime factorization of 18189897 is 19 × 3 × 11 × 67 × 433.
Since it has a total of 5 prime factors.
6 , 6 , 4 , 33 , 841 , 156 , 8222 , 9879 , 90934 , 66027 , 757819 , 413937 , 6456578 , 403668 , 24730852 , 66986348 , 666224136 , 28282502 , 2624853775 , 7098371556
n×2
36379794
n×3
54569691
n×4
72759588
n×5
90949485
n÷2
9094948.5
n÷3
6063299
n÷3
4547474.25
n÷5
3637979.4
n2
330872352870609
n3
6.018534018864E+21
n4
1.0947651389413E+29
n5
1.9913665116533E+36
2 √n
4264.9615473061
3 √n
262.99253016031
4 √n
65.306673068731
5 √n
28.311706535243
1 , 3 , 11 , 19 , 33 , 57 , 67 , 201 , 209 , 433 , 627 , 737 , 1273 , 1299 , 2211 , 3819 , 4763 , 8227 , 14003 , 14289 , 24681 , 29011 , 42009 , 87033 , 90497 , 271491 , 319121 , 551209 , 957363 , 1653627 , 6063299 , 18189897
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18189896
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18189897 can be divided by 32 positive divisors.
The sum of these divisors (counting 18189897) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1000101011000111001001001
3
Ternary
1021020010211220
4
Quaternary
1011120321021
5
Quinary
14124034042
6
Senary
1445512253
8
Octal
105307111
10
Decimal
18189897
12
Duodecimal
6112689
16
Hexadecimal
1158e49
20
Vigesimal
5ddeeh
36
Base36
atvex
md5
ed96b9b2e94f1956ad1595aefc01f024
sha1
08bfe27b2eaa6985b445a87843ed43c6ed30647b
sha256
3c1510dc9a8a002199553302cf46da5cabde81cd879395ce323d9649a371ab02
sha512
bc197c69fcc0445a1724ed7e155e70623d88275d9e46b94a0a862b8336ca1d27168b23e5e4c9b44285a777156d1acac94f19c27f568a8065b27d74f3a322b1b1
ripemd-160
5e464806731d255821c87aebc2923220399b4dea
Diameter
36379794
Circumference
114290493.56951
Area
1.0394661530543E+15
Volume
2.5210376345391E+22
Surface area
4.1578646122171E+15
Circumference
114290493.56951
Perimeter
72759588
Area
330872352870609
Diagonal
25724399.03557
Surface area
1985234117223654
Volume
6.018534018864E+21
Space diagonal
31505825.788445
Perimeter
54569691
Area
1.4327193149794E+14
Altitude
15752912.894222
Surface area
1.4327193149794E+14
Volume
7.0929103625678E+20
Height
8574799.6785232