18993869 is an odd 8-digits composite number following 18993868
and preceding 18993870 . In scientific notation, it is written as 1.8993869 × 10^7.
The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors.
There are 18231472 positive integers (up to 18993869) that are relatively prime to 18993869.
18993869 has 8 divisors, whose sum is 19764000
The reverse of 18993869 is 96839981
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
eighteen million nine hundred ninety-three thousand eight hundred sixty-nine
Scientific notation
1.8993869 × 10^7
Engineering notation
1.8993869 × 10^6
Prime Factorization
29 × 179 × 3659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18993869
Product of the distinct prime numbers
The prime factorization of 18993869 is 29 × 179 × 3659.
Since it has a total of 3 prime factors.
2 , 8 , 78 , 5 , 548 , 52 , 1442 , 9646 , 37609 , 50651 , 935288 , 366860 , 6827542 , 5022289 , 71196984 , 48718487 , 568401368 , 690915564 , 2176565033 , 5387904460
n×2
37987738
n×3
56981607
n×4
75975476
n×5
94969345
n÷2
9496934.5
n÷3
6331289.6666667
n÷3
4748467.25
n÷5
3798773.8
n2
360767059589161
n3
6.8523622693517E+21
n4
1.3015287128461E+29
n5
2.4721065871537E+36
2 √n
4358.1956128655
3 √n
266.8114600818
4 √n
66.016631335335
5 √n
28.557664535747
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
-18993868
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 18993869 can be divided by 8 positive divisors.
The sum of these divisors (counting 18993869) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011101001011001101
3
Ternary
1022201222200122
4
Quaternary
1020131023031
5
Quinary
14330300434
6
Senary
1515034325
8
Octal
110351315
10
Decimal
18993869
12
Duodecimal
643b9a5
16
Hexadecimal
121d2cd
20
Vigesimal
5ie4d9
36
Base36
bb3rh
md5
a150ae68660d19a44c5bad7dc6f2ad2a
sha1
03d962b4bfd181775629eed1d1348523c1055190
sha256
4919053801cf3c5556f0aacd3407b7dfcc22252cf9460ec617f729fb13d5a38e
sha512
77da8efd4e72bbcfbe4eae983af4df04aead69baa9c9b363409408abf1c4303f5be9237fffc1b8db951d7ba33d302ef61380531b1248456406678c85f7e51ad9
ripemd-160
f677302d3a2108c7af6121ab17f1fb617ef9281d
Diameter
37987738
Circumference
119341998.62729
Area
1.1333831440625E+15
Volume
2.8703107953508E+22
Surface area
4.53353257625E+15
Circumference
119341998.62729
Perimeter
75975476
Area
360767059589161
Diagonal
26861387.141738
Surface area
2164602357534966
Volume
6.8523622693517E+21
Space diagonal
32898346.140307
Perimeter
56981607
Area
1.5621671922641E+14
Altitude
16449173.070154
Surface area
1.5621671922641E+14
Volume
8.0755863796757E+20
Height
8953795.7139126