2918981 is an odd 7-digits composite number following 2918980
and preceding 2918982 . In scientific notation, it is written as 2.918981 × 10^6.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 2674800 positive integers (up to 2918981) that are relatively prime to 2918981.
2918981 has 8 divisors, whose sum is 3166464
The reverse of 2918981 is 1898192
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
two million nine hundred eighteen thousand nine hundred eighty-one
Scientific notation
2.918981 × 10^6
Engineering notation
2.918981 × 10^6
Prime Factorization
13 × 151 × 1487
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2918981
Product of the distinct prime numbers
The prime factorization of 2918981 is 13 × 151 × 1487.
Since it has a total of 3 prime factors.
5 , 2 , 19 , 14 , 70 , 483 , 7956 , 2154 , 65511 , 41994 , 645109 , 834147 , 107647 , 1347863 , 15245627 , 14527466 , 997455394 , 677674082 , 3007065230 , 5669422567
n×2
5837962
n×3
8756943
n×4
11675924
n×5
14594905
n÷2
1459490.5
n÷3
972993.66666667
n÷3
729745.25
n÷5
583796.2
n2
8520450078361
n3
2.4871031890184E+19
n4
7.2598069537842E+25
n5
2.1191238561764E+32
2 √n
1708.5025607239
3 √n
142.91476166215
4 √n
41.334036346864
5 √n
19.635693915466
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
-2918980
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 2918981 can be divided by 8 positive divisors.
The sum of these divisors (counting 2918981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011001000101001000101
3
Ternary
12111022002102
4
Quaternary
23020221011
5
Quinary
1221401411
6
Senary
142321445
8
Octal
13105105
10
Decimal
2918981
12
Duodecimal
b89285
16
Hexadecimal
2c8a45
20
Vigesimal
i4h91
36
Base36
1qkat
md5
d8bffb9325ca42b9774cb1f692c68136
sha1
9c84f7e51bbfa6380ca67248cec0626898230201
sha256
8a047af68018e2e00311e20c103b2b3c3d23470bab6767e15dd370ed7c204c2a
sha512
d39962cd5b34bfb585d63099356ccbea44afc2a2c9991deb8d36b0161146c613a33248a80b3a37a3b1714c0291413b2c9d187b17b59869d589eb70c259f49ca0
ripemd-160
83f02cd30366511b48cd1adc2959ed6b1a9b6ca8
Diameter
5837962
Circumference
18340498.531136
Area
26767783371457
Volume
1.0417953476453E+20
Surface area
1.0707113348583E+14
Circumference
18340498.531136
Perimeter
11675924
Area
8520450078361
Diagonal
4128062.5185094
Surface area
51122700470166
Volume
2.4871031890184E+19
Space diagonal
5055823.3983282
Perimeter
8756943
Area
3689463109768.9
Altitude
2527911.6991641
Surface area
3689463109768.9
Volume
2.9310792174427E+18
Height
1376020.8395031