18978082 is an even 8-digits composite number following 18978081
and preceding 18978083 . In scientific notation, it is written as 1.8978082 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 9076452 positive integers (up to 18978082) that are relatively prime to 18978082.
18978082 has 8 divisors, whose sum is 29704896
The reverse of 18978082 is 28087981
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighteen million nine hundred seventy-eight thousand eighty-two
Scientific notation
1.8978082 × 10^7
Engineering notation
1.8978082 × 10^6
Prime Factorization
2 × 23 × 412567
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18978082
Product of the distinct prime numbers
The prime factorization of 18978082 is 2 × 23 × 412567.
Since it has a total of 3 prime factors.
1 , 9 , 87 , 13 , 780 , 109 , 8444 , 9671 , 69000 , 31769 , 810818 , 72391 , 9799844 , 1533084 , 18632670 , 67336625 , 176621054 , 304523613 , 8276506698 , 7474879336
n×2
37956164
n×3
56934246
n×4
75912328
n×5
94890410
n÷2
9489041
n÷3
6326027.3333333
n÷3
4744520.5
n÷5
3795616.4
n2
360167596398724
n3
6.8352901781979E+21
n4
1.2972069749563E+29
n5
2.4618500341693E+36
2 √n
4356.3840510221
3 √n
266.73751832627
4 √n
66.002909413314
5 √n
28.552915742193
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18978081
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18978082 can be divided by 8 positive divisors.
The sum of these divisors (counting 18978082) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011001010100100010
3
Ternary
1022201012000221
4
Quaternary
1020121110202
5
Quinary
14324244312
6
Senary
1514433254
8
Octal
110312442
10
Decimal
18978082
12
Duodecimal
643282a
16
Hexadecimal
1219522
20
Vigesimal
5ic542
36
Base36
barky
md5
3820df04210cdaae5416129934831055
sha1
ded8e1461cc3475817cb97763b3cbea23d3d244f
sha256
6f53b99469386c08c88cd70ea6fd7dd658b6386d1f1d3084ca97b493ee026329
sha512
345a25e487535e6c338df804005b00c6d9896113d16a115d517ec8d7cad30599722c5c5ada5998de9c45ed018c6f0fb6a801753ce9509680b766f1e37a93041f
ripemd-160
64d752e829400571ae4cf2b3c0fd0f1fabc7990b
Diameter
37956164
Circumference
119242805.98085
Area
1.1314998749073E+15
Volume
2.8631596545308E+22
Surface area
4.5259994996293E+15
Circumference
119242805.98085
Perimeter
75912328
Area
360167596398724
Diagonal
26839060.952229
Surface area
2161005578392344
Volume
6.8352901781979E+21
Space diagonal
32871002.254208
Perimeter
56934246
Area
1.5595714405064E+14
Altitude
16435501.127104
Surface area
1.5595714405064E+14
Volume
8.0554667273026E+20
Height
8946353.6507429