18150981 is an odd 8-digits composite number following 18150980
and preceding 18150982 . In scientific notation, it is written as 1.8150981 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 12100652 positive integers (up to 18150981) that are relatively prime to 18150981.
18150981 has 4 divisors, whose sum is 24201312
The reverse of 18150981 is 18905181
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million one hundred fifty thousand nine hundred eighty-one
Scientific notation
1.8150981 × 10^7
Engineering notation
1.8150981 × 10^6
Prime Factorization
3 × 6050327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18150981
Product of the distinct prime numbers
The prime factorization of 18150981 is 3 × 6050327.
Since it has a total of 2 prime factors.
4 , 2 , 60 , 20 , 460 , 122 , 8601 , 7593 , 69919 , 27736 , 125789 , 185737 , 3932242 , 6583725 , 71861826 , 79828411 , 450836390 , 427275698 , 8129243543 , 691533717
n×2
36301962
n×3
54452943
n×4
72603924
n×5
90754905
n÷2
9075490.5
n÷3
6050327
n÷3
4537745.25
n÷5
3630196.2
n2
329458111262361
n3
5.979987917819E+21
n4
1.0854264707656E+29
n5
1.9701555247764E+36
2 √n
4260.3968125047
3 √n
262.80484493522
4 √n
65.27171525634
5 √n
28.299581975611
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
-18150980
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 18150981 can be divided by 4 positive divisors.
The sum of these divisors (counting 18150981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101001111011001000101
3
Ternary
1021011011110120
4
Quaternary
1011033121011
5
Quinary
14121312411
6
Senary
1445012153
8
Octal
105173105
10
Decimal
18150981
12
Duodecimal
60b4059
16
Hexadecimal
114f645
20
Vigesimal
5d8h91
36
Base36
at1dx
md5
0680cd6420c21c26fd8b5e5f084407a0
sha1
c6b96da92ca76a4993b38f9f03bfa40d5aafbe40
sha256
a985545f27b959b28a01c191c5f26de6ec761fce57e29019fbc70eb4044e8af3
sha512
3a2fede2ccc554606f1c39a7ba198c9882cfde812136c876ec8f67bf6fc8ffdbb039a9194dca020de060310b884431514bd9a8f367b22795bc690125793a482d
ripemd-160
6b7ca8ad32f240deb2e4ac3fec0262c7d59b543a
Diameter
36301962
Circumference
114045977.1301
Area
1.0350231820074E+15
Volume
2.5048914814901E+22
Surface area
4.1400927280296E+15
Circumference
114045977.1301
Perimeter
72603924
Area
329458111262361
Diagonal
25669363.500576
Surface area
1976748667574166
Volume
5.979987917819E+21
Space diagonal
31438421.299217
Perimeter
54452943
Area
1.4265954691802E+14
Altitude
15719210.649609
Surface area
1.4265954691802E+14
Volume
7.0474833468391E+20
Height
8556454.5001921