18881012 is an even 8-digits composite number following 18881011
and preceding 18881013 . In scientific notation, it is written as 1.8881012 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 9311040 positive integers (up to 18881012) that are relatively prime to 18881012.
18881012 has 12 divisors, whose sum is 33494916
The reverse of 18881012 is 21018881
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighteen million eight hundred eighty-one thousand twelve
Scientific notation
1.8881012 × 10^7
Engineering notation
1.8881012 × 10^6
Prime Factorization
2 × 2 × 73 × 64661
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9440506
Product of the distinct prime numbers
The prime factorization of 18881012 is 2 × 2 × 73 × 64661.
Since it has a total of 4 prime factors.
7 , 4 , 53 , 20 , 621 , 630 , 4890 , 8237 , 54974 , 64705 , 919151 , 603858 , 546347 , 8085002 , 85883743 , 74479373 , 763057642 , 822693661 , 7481884031 , 3431582871
n×2
37762024
n×3
56643036
n×4
75524048
n×5
94405060
n÷2
9440506
n÷3
6293670.6666667
n÷3
4720253
n÷5
3776202.4
n2
356492614144144
n3
6.730941325567E+21
n4
1.2708698393933E+29
n5
2.3995308688022E+36
2 √n
4345.2286476088
3 √n
266.28196681725
4 √n
65.918348337991
5 √n
28.523647035424
1 , 2 , 4 , 73 , 146 , 292 , 64661 , 129322 , 258644 , 4720253 , 9440506 , 18881012
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18881011
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18881012 can be divided by 12 positive divisors.
The sum of these divisors (counting 18881012) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001000000001100111110100
3
Ternary
1022112020212202
4
Quaternary
1020001213310
5
Quinary
14313143022
6
Senary
1512404032
8
Octal
110014764
10
Decimal
18881012
12
Duodecimal
63a6618
16
Hexadecimal
12019f4
20
Vigesimal
5i02ac
36
Base36
b8ook
md5
0574642c29a099ab068bdc164485544a
sha1
46be56482df502fc329153d509081817c3b457c8
sha256
d45735bceed639696216baad7ea6e652160f400d3c5b82a73343b73b57bf063c
sha512
580b70629876587f9e5d3e08115863034c72d62b3ba2c9e738db00d6da6d0b9ff9db9979c04d3e4ca49f013836079723249238e861f0cce9b1289f0b4ec82430
ripemd-160
0983c7af0ce54a6e37d075705593a7f7bb32b3a2
Diameter
37762024
Circumference
118632897.18308
Area
1.1199545776543E+15
Volume
2.8194501093527E+22
Surface area
4.4798183106171E+15
Circumference
118632897.18308
Perimeter
75524048
Area
356492614144144
Diagonal
26701783.241729
Surface area
2138955684864864
Volume
6.730941325567E+21
Space diagonal
32702872.082318
Perimeter
56643036
Area
1.5436583005518E+14
Altitude
16351436.041159
Surface area
1.5436583005518E+14
Volume
7.9324904251286E+20
Height
8900594.4139097