18389898 is an even 8-digits composite number following 18389897
and preceding 18389899 . In scientific notation, it is written as 1.8389898 × 10^7.
The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors.
There are 6129960 positive integers (up to 18389898) that are relatively prime to 18389898.
18389898 has 8 divisors, whose sum is 30649860
The reverse of 18389898 is 89898381
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 54
Digital Root 9
Name
eighteen million three hundred eighty-nine thousand eight hundred ninety-eight
Scientific notation
1.8389898 × 10^7
Engineering notation
1.8389898 × 10^6
Prime Factorization
2 × 9 × 1021661
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18389898
Product of the distinct prime numbers
The prime factorization of 18389898 is 2 × 9 × 1021661.
Since it has a total of 3 prime factors.
2 , 5 , 78 , 54 , 486 , 856 , 2681 , 5589 , 70687 , 4326 , 291295 , 439968 , 7096976 , 7916484 , 94709478 , 58555352 , 219177900 , 736264607 , 3838901082 , 5622646480
n×2
36779796
n×3
55169694
n×4
73559592
n×5
91949490
n÷2
9194949
n÷3
6129966
n÷3
4597474.5
n÷5
3677979.6
n2
338188348450404
n3
6.2192492327914E+21
n4
1.1437135902761E+29
n5
2.1032776266392E+36
2 √n
4288.3444357934
3 √n
263.95290137754
4 √n
65.485452092762
5 √n
28.373692913398
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18389897
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18389898 can be divided by 8 positive divisors.
The sum of these divisors (counting 18389898) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001001101110001010
3
Ternary
1021121022012100
4
Quaternary
1012021232022
5
Quinary
14201434043
6
Senary
1454054230
8
Octal
106115612
10
Decimal
18389898
12
Duodecimal
61aa376
16
Hexadecimal
1189b8a
20
Vigesimal
5eieei
36
Base36
ay5qi
md5
dcca97a07d14318b024f820afa39c2bb
sha1
8bbb86a7e0b150967cb50fd73f61c41daca66da2
sha256
0b57dc6abf4f1d47e1e5a9ed35266a603d51d63a33061149ea24d07440cc00cc
sha512
4c962319704eec0bc14fcb230cfb43288bdb12ea4eabdb1e295bc3532c03fe39283c215a7d30a1412995ef8093442507b12e951be4bf866b82194ad3197f804f
ripemd-160
b1e9a0e9a7cbe3976db3ef657a22416b24dfcfcd
Diameter
36779796
Circumference
115547136.91413
Area
1.0624500310215E+15
Volume
2.6051130267442E+22
Surface area
4.2498001240858E+15
Circumference
115547136.91413
Perimeter
73559592
Area
338188348450404
Diagonal
26007243.162258
Surface area
2029130090702424
Volume
6.2192492327914E+21
Space diagonal
31852237.682009
Perimeter
55169694
Area
1.4643985051098E+14
Altitude
15926118.841005
Surface area
1.4643985051098E+14
Volume
7.32945551066E+20
Height
8669081.054086