18771121 is an odd 8-digits composite number following 18771120
and preceding 18771122 . In scientific notation, it is written as 1.8771121 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 18627700 positive integers (up to 18771121) that are relatively prime to 18771121.
18771121 has 4 divisors, whose sum is 18914544
The reverse of 18771121 is 12117781
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million seven hundred seventy-one thousand one hundred twenty-one
Scientific notation
1.8771121 × 10^7
Engineering notation
1.8771121 × 10^6
Prime Factorization
131 × 143291
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18771121
Product of the distinct prime numbers
The prime factorization of 18771121 is 131 × 143291.
Since it has a total of 2 prime factors.
6 , 6 , 57 , 32 , 557 , 611 , 7540 , 2564 , 26665 , 37056 , 638972 , 189610 , 3971742 , 4012096 , 14609600 , 31378367 , 574775082 , 642480900 , 8048703105 , 2557941614
n×2
37542242
n×3
56313363
n×4
75084484
n×5
93855605
n÷2
9385560.5
n÷3
6257040.3333333
n÷3
4692780.25
n÷5
3754224.2
n2
352354983596641
n3
6.6140980320456E+21
n4
1.2415403446539E+29
n5
2.330510403588E+36
2 √n
4332.5651755052
3 √n
265.76435780402
4 √n
65.8222240243
5 √n
28.490366880585
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
-18771120
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 18771121 can be divided by 4 positive divisors.
The sum of these divisors (counting 18771121) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111100110110010110001
3
Ternary
1022022200010201
4
Quaternary
1013212302301
5
Quinary
14301133441
6
Senary
1510155201
8
Octal
107466261
10
Decimal
18771121
12
Duodecimal
6352b01
16
Hexadecimal
11e6cb1
20
Vigesimal
5h67g1
36
Base36
b6bw1
md5
5e52bc3475cc2f5c2f22587499286b54
sha1
a177e124e7c0199de869d7f5960d47bf0b244bd5
sha256
70f9690881d7ce543a6c87b7b0be2fdfc153a67c150cd3d49ee1f9e329f8532d
sha512
2b7318f3555c4baec7b47fc0edc865944847f70269e69d33c644bdfdbc35b5e0ac3a377368846e859f7670581f377f8d9f29da537fdca5c63d8d50aacb791da5
ripemd-160
4884196b131ceeaf1fa00c76600d52da3c9aac3f
Diameter
37542242
Circumference
117942431.66649
Area
1.106955827923E+15
Volume
2.7705069050129E+22
Surface area
4.4278233116918E+15
Circumference
117942431.66649
Perimeter
75084484
Area
352354983596641
Diagonal
26546373.899146
Surface area
2114129901579846
Volume
6.6140980320456E+21
Space diagonal
32512535.287023
Perimeter
56313363
Area
1.5257418347237E+14
Altitude
16256267.643512
Surface area
1.5257418347237E+14
Volume
7.7947892831534E+20
Height
8848791.2997155