18385940 is an even 8-digits composite number following 18385939
and preceding 18385941 . In scientific notation, it is written as 1.8385940 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 7183008 positive integers (up to 18385940) that are relatively prime to 18385940.
18385940 has 12 divisors, whose sum is 32326560
The reverse of 18385940 is 04958381
Previous prime number is 215
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million three hundred eighty-five thousand nine hundred forty
Scientific notation
1.8385940 × 10^7
Engineering notation
1.8385940 × 10^6
Prime Factorization
2 × 2 × 215 × 21379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9192970
Product of the distinct prime numbers
The prime factorization of 18385940 is 2 × 2 × 215 × 21379.
Since it has a total of 4 prime factors.
8 , 10 , 9 , 12 , 40 , 126 , 3178 , 9571 , 64385 , 35090 , 641621 , 741822 , 5550856 , 4263330 , 77703154 , 67215887 , 502948476 , 851614887 , 2531262772 , 9930989089
n×2
36771880
n×3
55157820
n×4
73543760
n×5
91929700
n÷2
9192970
n÷3
6128646.6666667
n÷3
4596485
n÷5
3677188
n2
338042789683600
n3
6.2152344485553E+21
n4
1.1427292765707E+29
n5
2.1010151915272E+36
2 √n
4287.8829275063
3 √n
263.93396343411
4 √n
65.481928251284
5 √n
28.372471452071
1 , 2 , 4 , 215 , 430 , 860 , 21379 , 42758 , 85516 , 4596485 , 9192970 , 18385940
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
-18385939
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 18385940 can be divided by 12 positive divisors.
The sum of these divisors (counting 18385940) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000110001000110000010100
3
Ternary
1021121002202202
4
Quaternary
1012020300110
5
Quinary
14201322230
6
Senary
1454024032
8
Octal
106106024
10
Decimal
18385940
12
Duodecimal
61a8018
16
Hexadecimal
1188c14
20
Vigesimal
5ei4h0
36
Base36
ay2ok
md5
e01948d1e07c97775400638fe09a0957
sha1
4cead67ddb8f8c6e15c1ddca3c044a11271b839f
sha256
c31473a8f1e5a46c8ac67b47e5dc440d8944cf6004c6a08e0b7f6968f12bd3a0
sha512
a70644e70e2dfb0a1e71d67ea4868e66b9a1445dcc095f1d5bb0a2f6152922496b33e99f4d97b7988564f13f689f6f3420727c6403d3dbbeff95711b4eb4609a
ripemd-160
d298d9566e3e4de3698e4c948f015b2da21b2832
Diameter
36771880
Circumference
115522268.06669
Area
1.061992744669E+15
Volume
2.6034313178559E+22
Surface area
4.247970978676E+15
Circumference
115522268.06669
Perimeter
73543760
Area
338042789683600
Diagonal
26001645.704978
Surface area
2028256738101600
Volume
6.2152344485553E+21
Space diagonal
31845382.224913
Perimeter
55157820
Area
1.4637682171608E+14
Altitude
15922691.112456
Surface area
1.4637682171608E+14
Volume
7.3247240420628E+20
Height
8667215.2349927