18851131 is an odd 8-digits composite number following 18851130
and preceding 18851132 . In scientific notation, it is written as 1.8851131 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 16248960 positive integers (up to 18851131) that are relatively prime to 18851131.
18851131 has 16 divisors, whose sum is 21692160
The reverse of 18851131 is 13115881
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million eight hundred fifty-one thousand one hundred thirty-one
Scientific notation
1.8851131 × 10^7
Engineering notation
1.8851131 × 10^6
Prime Factorization
29 × 13 × 31 × 1613
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18851131
Product of the distinct prime numbers
The prime factorization of 18851131 is 29 × 13 × 31 × 1613.
Since it has a total of 4 prime factors.
2 , 3 , 92 , 54 , 526 , 542 , 5043 , 8195 , 78738 , 18369 , 502584 , 977103 , 6556011 , 3367560 , 63306349 , 52090089 , 305476260 , 572597010 , 2966495354 , 426086800
n×2
37702262
n×3
56553393
n×4
75404524
n×5
94255655
n÷2
9425565.5
n÷3
6283710.3333333
n÷3
4712782.75
n÷5
3770226.2
n2
355365139979161
n3
6.6990348065805E+21
n4
1.2628438271241E+29
n5
2.3806034417658E+36
2 √n
4341.7889170249
3 √n
266.1414204561
4 √n
65.892252329275
5 √n
28.514613037057
1 , 13 , 29 , 31 , 377 , 403 , 899 , 1613 , 11687 , 20969 , 46777 , 50003 , 608101 , 650039 , 1450087 , 18851131
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
-18851130
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 18851131 can be divided by 16 positive divisors.
The sum of these divisors (counting 18851131) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000111111010010100111011
3
Ternary
1022110201220001
4
Quaternary
1013322110323
5
Quinary
14311214011
6
Senary
1512013431
8
Octal
107722473
10
Decimal
18851131
12
Duodecimal
6391277
16
Hexadecimal
11fa53b
20
Vigesimal
5hg7gb
36
Base36
b81mj
md5
5bce7c124943ad7dcf7ff4959bd0ece7
sha1
cfaf1c38dca0404a4a78f697fa21b67c19f5534c
sha256
17a6007ed11a0192dc7bc9d442d0a3ffd5e0cbaf3893347383db4e420cd54b34
sha512
825f73c726139b095e18f6e2854a4ab4f4650e6ccd73710f18db6ec95e4dce6a1d3ee61383c9ba75ab125edc62381b7af1a4c19919e2629ef00399814104f459
ripemd-160
680f70c5a03f18dc6a9029fb1e25ab5af72cde83
Diameter
37702262
Circumference
118445149.32292
Area
1.1164125131004E+15
Volume
2.8060851379327E+22
Surface area
4.4656500524018E+15
Circumference
118445149.32292
Perimeter
75404524
Area
355365139979161
Diagonal
26659525.126272
Surface area
2132190839874966
Volume
6.6990348065805E+21
Space diagonal
32651116.672137
Perimeter
56553393
Area
1.5387761942068E+14
Altitude
16325558.336068
Surface area
1.5387761942068E+14
Volume
7.8948882318963E+20
Height
8886508.375424