2947981 is an odd 7-digits composite number following 2947980
and preceding 2947982 . In scientific notation, it is written as 2.947981 × 10^6.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 2885212 positive integers (up to 2947981) that are relatively prime to 2947981.
2947981 has 4 divisors, whose sum is 3010752
The reverse of 2947981 is 1897492
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 40
Digital Root 4
Name
two million nine hundred forty-seven thousand nine hundred eighty-one
Scientific notation
2.947981 × 10^6
Engineering notation
2.947981 × 10^6
Prime Factorization
47 × 62723
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2947981
Product of the distinct prime numbers
The prime factorization of 2947981 is 47 × 62723.
Since it has a total of 2 prime factors.
1 , 10 , 1 , 94 , 820 , 234 , 6593 , 8220 , 1735 , 97572 , 801622 , 574765 , 6992692 , 40702 , 40653588 , 17906498 , 202830663 , 540864713 , 8524214243 , 7290508416
n×2
5895962
n×3
8843943
n×4
11791924
n×5
14739905
n÷2
1473990.5
n÷3
982660.33333333
n÷3
736995.25
n÷5
589596.2
n2
8690591976361
n3
2.5619700025065E+19
n4
7.552638889959E+25
n5
2.226503594746E+32
2 √n
1716.9685495081
3 √n
143.38648770699
4 √n
41.43631920801
5 √n
19.674555805316
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
-2947980
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 2947981 can be divided by 4 positive divisors.
The sum of these divisors (counting 2947981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1011001111101110001101
3
Ternary
12112202212111
4
Quaternary
23033232031
5
Quinary
1223313411
6
Senary
143104021
8
Octal
13175615
10
Decimal
2947981
12
Duodecimal
ba2011
16
Hexadecimal
2cfb8d
20
Vigesimal
i89j1
36
Base36
1r6od
md5
533858e51ed82e3633dba5db0866d452
sha1
789fd4de41f16b1f7cfdca55d6eb87d88916e988
sha256
f35a0ecc22df02cb737754699b71503a862d11edfb96c40b2e8fea12d3ed8de8
sha512
0b1ef48a405d86209abc65fd836984e863af8ff7e1f559b71ca4125ac60f7161f85b71dbc7bea084e46ceebfe74a6f77cce008f0fd763c98979fc131058b0446
ripemd-160
55e1019bdbc4555daef9eae7201c3a6b93683947
Diameter
5895962
Circumference
18522710.905045
Area
27302299908282
Volume
1.0731554851456E+20
Surface area
1.0920919963313E+14
Circumference
18522710.905045
Perimeter
11791924
Area
8690591976361
Diagonal
4169074.7118182
Surface area
52143551858166
Volume
2.5619700025065E+19
Space diagonal
5106052.8717477
Perimeter
8843943
Area
3763136712726.9
Altitude
2553026.4358739
Surface area
3763136712726.9
Volume
3.0193106032814E+18
Height
1389691.5706061