18446989 is an odd 8-digits composite number following 18446988
and preceding 18446990 . In scientific notation, it is written as 1.8446989 × 10^7.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 15093760 positive integers (up to 18446989) that are relatively prime to 18446989.
18446989 has 16 divisors, whose sum is 22239360
The reverse of 18446989 is 98964481
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million four hundred forty-six thousand nine hundred eighty-nine
Scientific notation
1.8446989 × 10^7
Engineering notation
1.8446989 × 10^6
Prime Factorization
11 × 17 × 23 × 4289
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18446989
Product of the distinct prime numbers
The prime factorization of 18446989 is 11 × 17 × 23 × 4289.
Since it has a total of 4 prime factors.
3 , 3 , 35 , 85 , 625 , 146 , 1947 , 9727 , 33855 , 10259 , 919708 , 539835 , 2260844 , 9802970 , 48298575 , 19799642 , 874615172 , 523102494 , 7474831060 , 3260902422
n×2
36893978
n×3
55340967
n×4
73787956
n×5
92234945
n÷2
9223494.5
n÷3
6148996.3333333
n÷3
4611747.25
n÷5
3689397.8
n2
340291403166121
n3
6.277351771E+21
n4
1.1579823906877E+29
n5
2.1361288423209E+36
2 √n
4294.9958090783
3 √n
264.22576437007
4 √n
65.536217537162
5 √n
28.391288167991
1 , 11 , 17 , 23 , 187 , 253 , 391 , 4289 , 4301 , 47179 , 72913 , 98647 , 802043 , 1085117 , 1676999 , 18446989
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18446988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18446989 can be divided by 16 positive divisors.
The sum of these divisors (counting 18446989) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000110010111101010001101
3
Ternary
1021201012111211
4
Quaternary
1012113222031
5
Quinary
14210300424
6
Senary
1455214421
8
Octal
106275215
10
Decimal
18446989
12
Duodecimal
6217411
16
Hexadecimal
1197a8d
20
Vigesimal
5f5h99
36
Base36
azdsd
md5
d51131721fda8ef37c65bda9e5ce2f2c
sha1
17b2c6667080a4c4ca7f95e314eec0c530a0b260
sha256
a213c266fea6181046f5d65e158bf2461d2e52c558677924004bbce5fdea1a6a
sha512
9e94ca530eb1d0169a1adde67e0fb39670c9ee4cd2504536c0d2c191d700284377f2a5dfd58be2d4a2bf23f7c059ba82eefd514ed35d907df90fb617d98ec8c6
ripemd-160
7b4836d429dc74becd4dd2799c9667b7dbb58564
Diameter
36893978
Circumference
115905850.2465
Area
1.0690569722664E+15
Volume
2.6294509610363E+22
Surface area
4.2762278890658E+15
Circumference
115905850.2465
Perimeter
73787956
Area
340291403166121
Diagonal
26087982.028747
Surface area
2041748418996726
Volume
6.277351771E+21
Space diagonal
31951122.194664
Perimeter
55340967
Area
1.4735049991566E+14
Altitude
15975561.097332
Surface area
1.4735049991566E+14
Volume
7.3979300086125E+20
Height
8695994.0095824