18702989 is an odd 8-digits composite number following 18702988
and preceding 18702990 . In scientific notation, it is written as 1.8702989 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 18691200 positive integers (up to 18702989) that are relatively prime to 18702989.
18702989 has 4 divisors, whose sum is 18714780
The reverse of 18702989 is 98920781
Previous prime number is 9901
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighteen million seven hundred two thousand nine hundred eighty-nine
Scientific notation
1.8702989 × 10^7
Engineering notation
1.8702989 × 10^6
Prime Factorization
9901 × 1889
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18702989
Product of the distinct prime numbers
The prime factorization of 18702989 is 9901 × 1889.
Since it has a total of 2 prime factors.
10 , 9 , 94 , 76 , 589 , 780 , 1321 , 6757 , 88472 , 73951 , 319986 , 75793 , 1156380 , 8204261 , 13358417 , 96704905 , 822791801 , 221087689 , 9541270256 , 9225203587
n×2
37405978
n×3
56108967
n×4
74811956
n×5
93514945
n÷2
9351494.5
n÷3
6234329.6666667
n÷3
4675747.25
n÷5
3740597.8
n2
349801797534121
n3
6.5423391714609E+21
n4
1.223612975581E+29
n5
2.2885220022549E+36
2 √n
4324.6952493789
3 √n
265.44242695535
4 √n
65.762415172945
5 √n
28.469654958071
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18702988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18702989 can be divided by 4 positive divisors.
The sum of these divisors (counting 18702989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111010110001010001101
3
Ternary
1022012012200022
4
Quaternary
1013112022031
5
Quinary
14241443424
6
Senary
1504511525
8
Octal
107261215
10
Decimal
18702989
12
Duodecimal
631b5a5
16
Hexadecimal
11d628d
20
Vigesimal
5ghh99
36
Base36
b4vbh
md5
e4512a34c60e6f82cf6d6b6c895c848e
sha1
b7c269ea25b3ce4d12dabcd42775a5cc809a370c
sha256
05c902ddd423a4570c716e6853357aefd1368d959a543f32711a1d9daaaf6630
sha512
df3c99d37b887edd02ceab94ea0aaf940f6627f7ab5042c99e82c22e0faf4737f1a87f077236fd434a4c75a308ee65a8fc855a428ee564dcf1d1ca6efa4a1662
ripemd-160
0c9956a620a8dde9ac73af3a90134bd6f538d909
Diameter
37405978
Circumference
117514345.68514
Area
1.0989347573457E+15
Volume
2.7404486237806E+22
Surface area
4.3957390293828E+15
Circumference
117514345.68514
Perimeter
74811956
Area
349801797534121
Diagonal
26450020.700715
Surface area
2098810785204726
Volume
6.5423391714609E+21
Space diagonal
32394527.201402
Perimeter
56108967
Area
1.51468621477E+14
Altitude
16197263.600701
Surface area
1.51468621477E+14
Volume
7.7102206549373E+20
Height
8816673.5669049